What? No I mean actual colonization. You can look up the Mahaweli Development programme, it was specifically designed (under the guise of creating fertile land/pastures) to colonize more of the Sri Lankan region. "Somehow" there ended up being cities that were 94% Sinhalese and only Sinhalese-language was used in USAID made documents/guides/brochures, despite being the least used language among 3.

USAid wasn’t even in existence for six months after the program you’re talking about. That had nothing to do with us.

https://pdf.usaid.gov/pdf_docs/pnabr388.pdf https://documents1.worldbank.org/curated/ar/5177914681133389...

By this point you could have just googled this yourself, I’m left to wonder why you’re making me do it for you. It’s not a secret.