diff --git a/integration-tests/environment-helpers/use-db.js b/integration-tests/environment-helpers/use-db.js
index 3581933d90..cb0c46be10 100644
--- a/integration-tests/environment-helpers/use-db.js
+++ b/integration-tests/environment-helpers/use-db.js
@@ -32,6 +32,7 @@ const keepTables = [
   "fulfillment_provider",
   "payment_provider",
   "country",
+  "region_country",
   "currency",
   "migrations",
   "mikro_orm_migrations",
diff --git a/integration-tests/modules/__tests__/api-key/admin/api-key.spec.ts b/integration-tests/modules/__tests__/api-key/admin/api-key.spec.ts
index 77d2dea406..8d3bdc5d32 100644
--- a/integration-tests/modules/__tests__/api-key/admin/api-key.spec.ts
+++ b/integration-tests/modules/__tests__/api-key/admin/api-key.spec.ts
@@ -40,13 +40,13 @@ describe("API Keys - Admin", () => {
 
   beforeEach(async () => {
     await createAdminUser(dbConnection, adminHeaders)
-
-    // Used for testing cross-module authentication checks
-    await regionService.createDefaultCountries()
   })
 
   afterEach(async () => {
     const db = useDb()
+    // TODO: Once teardown doesn't skip constraint checks and cascades, we can remove this
+    const existingRegions = await regionService.list({})
+    await regionService.delete(existingRegions.map((r) => r.id))
     await db.teardown()
   })
 
diff --git a/integration-tests/modules/__tests__/cart/store/cart.workflows.spec.ts b/integration-tests/modules/__tests__/cart/store/cart.workflows.spec.ts
index 2f76b75d45..111346478b 100644
--- a/integration-tests/modules/__tests__/cart/store/cart.workflows.spec.ts
+++ b/integration-tests/modules/__tests__/cart/store/cart.workflows.spec.ts
@@ -63,7 +63,6 @@ describe("Carts workflows", () => {
 
   beforeEach(async () => {
     await adminSeeder(dbConnection)
-    await regionModuleService.createDefaultCountries()
 
     // Here, so we don't have to create a region for each test
     defaultRegion = await regionModuleService.create({
diff --git a/integration-tests/modules/__tests__/cart/store/carts.spec.ts b/integration-tests/modules/__tests__/cart/store/carts.spec.ts
index b6641a9fd6..4249de1705 100644
--- a/integration-tests/modules/__tests__/cart/store/carts.spec.ts
+++ b/integration-tests/modules/__tests__/cart/store/carts.spec.ts
@@ -59,7 +59,6 @@ describe("Store Carts API", () => {
 
   beforeEach(async () => {
     await adminSeeder(dbConnection)
-    await regionModuleService.createDefaultCountries()
 
     // Here, so we don't have to create a region for each test
     defaultRegion = await regionModuleService.create({
diff --git a/integration-tests/modules/__tests__/link-modules/cart-links.spec.ts b/integration-tests/modules/__tests__/link-modules/cart-links.spec.ts
index 84281a7452..c4fb270033 100644
--- a/integration-tests/modules/__tests__/link-modules/cart-links.spec.ts
+++ b/integration-tests/modules/__tests__/link-modules/cart-links.spec.ts
@@ -47,11 +47,6 @@ describe("Cart links", () => {
     await shutdownServer()
   })
 
-  beforeEach(async () => {
-    // @ts-ignore
-    await regionModule.createDefaultCountries()
-  })
-
   afterEach(async () => {
     const db = useDb()
     await db.teardown()
diff --git a/integration-tests/modules/__tests__/link-modules/cart-region.spec.ts b/integration-tests/modules/__tests__/link-modules/cart-region.spec.ts
index 795124d48d..d0c67991b5 100644
--- a/integration-tests/modules/__tests__/link-modules/cart-region.spec.ts
+++ b/integration-tests/modules/__tests__/link-modules/cart-region.spec.ts
@@ -33,11 +33,6 @@ describe("Link: Cart Region", () => {
     await shutdownServer()
   })
 
-  beforeEach(async () => {
-    // @ts-ignore
-    await regionModule.createDefaultCountries()
-  })
-
   afterEach(async () => {
     const db = useDb()
     await db.teardown()
diff --git a/integration-tests/modules/__tests__/regions/admin/regions.spec.ts b/integration-tests/modules/__tests__/regions/admin/regions.spec.ts
index eaf7c35a97..c24b00d5f2 100644
--- a/integration-tests/modules/__tests__/regions/admin/regions.spec.ts
+++ b/integration-tests/modules/__tests__/regions/admin/regions.spec.ts
@@ -36,12 +36,13 @@ describe("Regions - Admin", () => {
 
   beforeEach(async () => {
     await createAdminUser(dbConnection, adminHeaders)
-
-    await service.createDefaultCountries()
   })
 
   afterEach(async () => {
     const db = useDb()
+    // TODO: Once teardown doesn't skip constraint checks and cascades, we can remove this
+    const existingRegions = await service.list({})
+    await service.delete(existingRegions.map((r) => r.id))
     await db.teardown()
   })
 
diff --git a/integration-tests/modules/__tests__/store/admin/store.spec.ts b/integration-tests/modules/__tests__/store/admin/store.spec.ts
index 1491e45d4c..8b3d5c2709 100644
--- a/integration-tests/modules/__tests__/store/admin/store.spec.ts
+++ b/integration-tests/modules/__tests__/store/admin/store.spec.ts
@@ -37,9 +37,6 @@ describe("Store - Admin", () => {
 
   beforeEach(async () => {
     await createAdminUser(dbConnection, adminHeaders)
-
-    const existingStores = await service.list({})
-    await service.delete(existingStores.map((s) => s.id))
   })
 
   afterEach(async () => {
diff --git a/packages/currency/src/loaders/initial-data.ts b/packages/currency/src/loaders/initial-data.ts
index 5c1980cec9..b06d12438b 100644
--- a/packages/currency/src/loaders/initial-data.ts
+++ b/packages/currency/src/loaders/initial-data.ts
@@ -1,6 +1,6 @@
 import { ModuleRegistrationName } from "@medusajs/modules-sdk"
-import { ModulesSdkTypes, LoaderOptions } from "@medusajs/types"
-import { defaultCurrencies } from "@medusajs/utils"
+import { ModulesSdkTypes, LoaderOptions, Logger } from "@medusajs/types"
+import { ContainerRegistrationKeys, defaultCurrencies } from "@medusajs/utils"
 import { Currency } from "@models"
 
 export default async ({
@@ -10,20 +10,23 @@ export default async ({
   | ModulesSdkTypes.ModuleServiceInitializeOptions
   | ModulesSdkTypes.ModuleServiceInitializeCustomDataLayerOptions
 >): Promise<void> => {
-  try {
-    const {
-      currencyService_,
-    }: { currencyService_: ModulesSdkTypes.InternalModuleService<Currency> } =
-      container.resolve(ModuleRegistrationName.CURRENCY)
+  // TODO: Add default logger to the container when running tests
+  const logger =
+    container.resolve<Logger>(ContainerRegistrationKeys.LOGGER) ?? console
+  const {
+    currencyService_,
+  }: { currencyService_: ModulesSdkTypes.InternalModuleService<Currency> } =
+    container.resolve(ModuleRegistrationName.CURRENCY)
 
+  try {
     const normalizedCurrencies = Object.values(defaultCurrencies).map((c) => ({
       ...c,
       code: c.code.toLowerCase(),
     }))
     const resp = await currencyService_.upsert(normalizedCurrencies)
-    console.log(`Loaded ${resp.length} currencies`)
+    logger.info(`Loaded ${resp.length} currencies`)
   } catch (error) {
-    console.error(
+    logger.warn(
       `Failed to load currencies, skipping loader. Original error: ${error.message}`
     )
   }
diff --git a/packages/region/integration-tests/__tests__/region-module.spec.ts b/packages/region/integration-tests/__tests__/region-module.spec.ts
index f691e64947..e65aa62e59 100644
--- a/packages/region/integration-tests/__tests__/region-module.spec.ts
+++ b/packages/region/integration-tests/__tests__/region-module.spec.ts
@@ -1,6 +1,5 @@
 import { Modules } from "@medusajs/modules-sdk"
 import { IRegionModuleService } from "@medusajs/types"
-import { DefaultsUtils } from "@medusajs/utils"
 import { initModules } from "medusa-test-utils"
 import { MikroOrmWrapper } from "../utils"
 import { getInitModuleConfig } from "../utils/get-init-module-config"
@@ -27,27 +26,8 @@ describe("Region Module Service", () => {
   })
 
   it("should create countries on application start", async () => {
-    const countries = await service.listCountries()
-    expect(countries.length).toBeGreaterThan(0)
-  })
-
-  it("should create countries added to default ones", async () => {
-    const [, count] = await service.listAndCountCountries()
-    const initialCountries = DefaultsUtils.defaultCountries.length
-
-    expect(count).toEqual(initialCountries)
-
-    DefaultsUtils.defaultCountries.push({
-      name: "Dogecoin",
-      alpha2: "DOGE",
-      alpha3: "DOGE",
-      numeric: "420",
-    })
-
-    await service.createDefaultCountries()
-
-    const [, newCount] = await service.listAndCountCountries()
-    expect(newCount).toEqual(initialCountries + 1)
+    const countries = await service.listCountries({}, { take: null })
+    expect(countries.length).toEqual(250)
   })
 
   it("should create and list a region", async () => {
@@ -356,4 +336,22 @@ describe("Region Module Service", () => {
       'Countries with codes: "mx" are already assigned to a region'
     )
   })
+
+  it("should unset the region ID on the country when deleting a region", async () => {
+    const createdRegion = await service.create({
+      name: "North America",
+      currency_code: "USD",
+      countries: ["us", "ca"],
+    })
+
+    await service.delete(createdRegion.id)
+
+    const resp = await service.create({
+      name: "North America",
+      currency_code: "USD",
+      countries: ["us", "ca"],
+    })
+
+    expect(resp.countries).toHaveLength(2)
+  })
 })
diff --git a/packages/region/src/loaders/defaults.ts b/packages/region/src/loaders/defaults.ts
index 434403eb7d..2375b51dda 100644
--- a/packages/region/src/loaders/defaults.ts
+++ b/packages/region/src/loaders/defaults.ts
@@ -1,13 +1,30 @@
-import { ModuleRegistrationName } from "@medusajs/modules-sdk"
-import { IRegionModuleService, LoaderOptions } from "@medusajs/types"
+import { Logger } from "@medusajs/types"
+import { LoaderOptions, ModulesSdkTypes } from "@medusajs/types"
+import { ContainerRegistrationKeys } from "@medusajs/utils"
+import { DefaultsUtils } from "@medusajs/utils"
+import { Country } from "@models"
 
 export default async ({ container }: LoaderOptions): Promise<void> => {
-  const service: IRegionModuleService = container.resolve(
-    ModuleRegistrationName.REGION
-  )
+  // TODO: Add default logger to the container when running tests
+  const logger =
+    container.resolve<Logger>(ContainerRegistrationKeys.LOGGER) ?? console
+  const countryService_: ModulesSdkTypes.InternalModuleService<Country> =
+    container.resolve("countryService")
 
-  // TODO: Remove when legacy modules have been migrated
-  if (!!process.env.MEDUSA_FF_MEDUSA_V2) {
-    await service.createDefaultCountries()
+  try {
+    const normalizedCountries = DefaultsUtils.defaultCountries.map((c) => ({
+      iso_2: c.alpha2.toLowerCase(),
+      iso_3: c.alpha3.toLowerCase(),
+      num_code: c.numeric,
+      name: c.name.toUpperCase(),
+      display_name: c.name,
+    }))
+
+    const resp = await countryService_.upsert(normalizedCountries)
+    logger.info(`Loaded ${resp.length} countries`)
+  } catch (error) {
+    logger.warn(
+      `Failed to load countries, skipping loader. Original error: ${error.message}`
+    )
   }
 }
diff --git a/packages/region/src/migrations/.snapshot-medusa-region.json b/packages/region/src/migrations/.snapshot-medusa-region.json
index 85e93f5a52..b48a175d6c 100644
--- a/packages/region/src/migrations/.snapshot-medusa-region.json
+++ b/packages/region/src/migrations/.snapshot-medusa-region.json
@@ -1,5 +1,7 @@
 {
-  "namespaces": ["public"],
+  "namespaces": [
+    "public"
+  ],
   "name": "public",
   "tables": [
     {
@@ -77,7 +79,9 @@
       "schema": "public",
       "indexes": [
         {
-          "columnNames": ["deleted_at"],
+          "columnNames": [
+            "deleted_at"
+          ],
           "composite": false,
           "keyName": "IDX_region_deleted_at",
           "primary": false,
@@ -85,7 +89,9 @@
         },
         {
           "keyName": "region_pkey",
-          "columnNames": ["id"],
+          "columnNames": [
+            "id"
+          ],
           "composite": false,
           "primary": true,
           "unique": true
@@ -165,7 +171,9 @@
       "indexes": [
         {
           "keyName": "region_country_pkey",
-          "columnNames": ["id"],
+          "columnNames": [
+            "id"
+          ],
           "composite": false,
           "primary": true,
           "unique": true
@@ -175,9 +183,13 @@
       "foreignKeys": {
         "region_country_region_id_foreign": {
           "constraintName": "region_country_region_id_foreign",
-          "columnNames": ["region_id"],
+          "columnNames": [
+            "region_id"
+          ],
           "localTableName": "public.region_country",
-          "referencedColumnNames": ["id"],
+          "referencedColumnNames": [
+            "id"
+          ],
           "referencedTableName": "public.region",
           "deleteRule": "set null",
           "updateRule": "cascade"
diff --git a/packages/region/src/migrations/RegionModuleSetup20240205173216.ts b/packages/region/src/migrations/RegionModuleSetup20240205173216.ts
index 36b56b04f7..2eb6b65a09 100644
--- a/packages/region/src/migrations/RegionModuleSetup20240205173216.ts
+++ b/packages/region/src/migrations/RegionModuleSetup20240205173216.ts
@@ -38,7 +38,7 @@ CREATE TABLE IF NOT EXISTS "region_country" (
 CREATE UNIQUE INDEX IF NOT EXISTS "IDX_region_country_region_id_iso_2_unique" ON "region_country" (region_id, iso_2);
 -- Adjust foreign keys for "region_country"
 ALTER TABLE "region_country" DROP CONSTRAINT IF EXISTS "FK_91f88052197680f9790272aaf5b";
-ALTER TABLE "region_country" ADD CONSTRAINT "region_country_region_id_foreign" FOREIGN KEY ("region_id") REFERENCES "region" ("id") ON UPDATE CASCADE;
+ALTER TABLE "region_country" ADD CONSTRAINT "region_country_region_id_foreign" FOREIGN KEY ("region_id") REFERENCES "region" ("id") ON UPDATE CASCADE ON DELETE SET NULL;
 `)
   }
 }
diff --git a/packages/region/src/models/country.ts b/packages/region/src/models/country.ts
index 65a565149f..1e1ae59f36 100644
--- a/packages/region/src/models/country.ts
+++ b/packages/region/src/models/country.ts
@@ -50,7 +50,9 @@ export default class Country {
 
   @ManyToOne({
     entity: () => Region,
+    fieldName: "region_id",
     nullable: true,
+    onDelete: "set null",
   })
   region?: Region | null
 
diff --git a/packages/region/src/services/region-module.ts b/packages/region/src/services/region-module.ts
index b0bd5ede3a..6e8140b1ae 100644
--- a/packages/region/src/services/region-module.ts
+++ b/packages/region/src/services/region-module.ts
@@ -21,18 +21,15 @@ import {
   MedusaError,
   ModulesSdkUtils,
   promiseAll,
-  DefaultsUtils,
   removeUndefined,
   getDuplicates,
 } from "@medusajs/utils"
 
 import { Country, Region } from "@models"
 
-import { CreateCountryDTO, UpdateRegionInput } from "@types"
+import { UpdateRegionInput } from "@types"
 import { entityNameToLinkableKeysMap, joinerConfig } from "../joiner-config"
 
-const COUNTRIES_LIMIT = 1000
-
 type InjectedDependencies = {
   baseRepository: DAL.RepositoryService
   regionService: ModulesSdkTypes.InternalModuleService<any>
@@ -280,7 +277,7 @@ export default class RegionModuleService<
 
     const countriesInDb = await this.countryService_.list(
       { iso_2: uniqueCountries },
-      { select: ["iso_2", "region_id"] },
+      { select: ["iso_2", "region_id"], take: null },
       sharedContext
     )
     const countryCodesInDb = countriesInDb.map((c) => c.iso_2.toLowerCase())
@@ -311,43 +308,4 @@ export default class RegionModuleService<
 
     return countriesInDb
   }
-
-  @InjectManager("baseRepository_")
-  public async createDefaultCountries(
-    @MedusaContext() sharedContext: Context = {}
-  ): Promise<void> {
-    await this.maybeCreateCountries(sharedContext)
-  }
-
-  @InjectTransactionManager("baseRepository_")
-  private async maybeCreateCountries(
-    @MedusaContext() sharedContext: Context
-  ): Promise<void> {
-    const [countries, count] = await this.countryService_.listAndCount(
-      {},
-      { select: ["iso_2"], take: COUNTRIES_LIMIT },
-      sharedContext
-    )
-
-    let countsToCreate: CreateCountryDTO[] = []
-    if (count !== DefaultsUtils.defaultCountries.length) {
-      const countriesInDb = new Set(countries.map((c) => c.iso_2))
-
-      const countriesToAdd = DefaultsUtils.defaultCountries.filter(
-        (c) => !countriesInDb.has(c.alpha2.toLowerCase())
-      )
-
-      countsToCreate = countriesToAdd.map((c) => ({
-        iso_2: c.alpha2.toLowerCase(),
-        iso_3: c.alpha3.toLowerCase(),
-        num_code: c.numeric,
-        name: c.name.toUpperCase(),
-        display_name: c.name,
-      }))
-    }
-
-    if (countsToCreate.length) {
-      await this.countryService_.create(countsToCreate, sharedContext)
-    }
-  }
 }
diff --git a/packages/types/src/region/service.ts b/packages/types/src/region/service.ts
index c8d5ecad9a..214912bfb7 100644
--- a/packages/types/src/region/service.ts
+++ b/packages/types/src/region/service.ts
@@ -356,15 +356,4 @@ export interface IRegionModuleService extends IModuleService {
     config?: RestoreReturn<TReturnableLinkableKeys>,
     sharedContext?: Context
   ): Promise<Record<string, string[]> | void>
-
-  /**
-   * This method creates default countries.
-   *
-   * @param {Context} sharedContext - A context used to share resources, such as transaction manager, between the application and the module.
-   * @returns {Promise<void>} Resolves when the default countries are created.
-   *
-   * @example
-   * {example-code}
-   */
-  createDefaultCountries(sharedContext?: Context): Promise<void>
 }