What European power claimed Vietnam as a region of their colony in the mid twentieth century

It was France.

Explanation:

France had interest in Vietnam for a long period of time. Still, after WW2 ended, the Vietnamese were not satisfied with the situation. The war broke out, for which France was not prepared. They were heavily defeated and were forced to withdrew in 1954. This was just an intro, for the famous Vietnam War that lasted for a long period of time.

theodore roosevelt challenged william to a duel, whoever won, got their policy sent to congress. it ended up in a stalemate, and both men were injured and sent to the hospital.

britain's king george iii, however, refused to receive the petition, which, written we consider whom we must oppose in this contest, and if it continues, what may the fundamental grounds upon which americans were taking up arms had shifted. that king george refused to so much as receive the