Korea has not, nor has it ever been, part of the United States of America, or one of its possessions.
and what year they i become a part of the us
In 1788.
In 1787.
Hawaii in 1959.
1817 July,4
October 24th, 1945
They supported South Korea.
1791
It hasn't. Canada is its own country.
It became a state in 1959.
It became the 22nd US State on 14 December 1819.
The US was part of a United Nations force fighting North Korea and its allies.