New answers tagged crimea
Similar examples are the Anschluss of Austria; the annexation of Sudetenland (but there was an explicit agreement of France and Great Britian and there had been fighting in previous attempts); and the establishment of the Protectorate_of_Bohemia_and_Moravia. Later these turned out to not be so bloodless, but initially it was achieved without much loss of ...
There are not many situations of annexation or unification in recent history, and most of those are accompanied by warfare or guerrilla violence. So this is a relatively unusual situation. Given the narrow question you asked, the most obvious answer is German unification. The DDR/GDR basically just dissolved and those East German Lander were incorporated ...
The Romans took over a few provinces, especially in the East, by being named heir by the last king. Pergamum and Bythinia, at the minimum.
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