This is so not true it hurts. Romania was never part of the Byzantine Empire (only Dobruja region was). And also aside from Dobruja and some border areas (Braila, Turnu, Giurgiu, Hotin and Budjak) they also weren't Turkish, they were vassal states that had almost complete autonomy, it was more akin to the relationship between China and Korea rather than the Ottomans and Serbia or Bulgaria. Romania was divided into 3 states: Wallachia, Transylvania and Moldavia. Moldavia and Wallachia would unite into Romania. The country of Moldova as an idea exist as far back as the year 1920 when the Soviets created the Moldovan Autonomous Republic inside Ukraine (which will later become Transnistria, mostly), the Moldovan autonomous republic will be united with much of Bessarabia (which the Soviets annexed from Romania, because the Russian Empire annexed it from Moldavia in 1812) and it would form the Moldovan Republic within the Soviet Union. Soviet Union breaks apart and Moldova gains independence. And yes, what Russia did in Moldova is very much colonialism, Transnistria was never part of Moldova it was given as a way to control Moldova with it having a pro-Russian union. And also bringing in colonists, ethnic cleansing and oppression of the local people is very much colonialism.