Andrew Jackson in the First Seminole War.
the Spanish-American war, as the US invaded Cuba to protect its source of sugar, then practically made it a US Territory.
because he invaded the Spanish Territory
Confederate Brigadier General Henry Hopkins Sibley invaded the New Mexico Territory.
After the Spanish-American war Spain sold: Cuba, Puerto Rico and Guam to the US for $20 million.
MacArther
They were invaded and occupied by the US.
john Davis
Puerto Rico became a US territory in 1898. Since them, every one of us born in Puerto Rico are US citizen. We are considered a commonwealth since 1952. That is one of the outcomes of American involvement. US invaded PR in 1898. WO1 Ramirez
tobacco farming required much land
please read more on the Spanish-American war The formal transfer of Puerto Rico to the United States took two months, from August 12 to October 18, 1898 when the last Spanish troops sailed back to Spain and the US flag was raised in most public buildings on the island. A military government was established under the command of General John R. Brooke.
He was the secretary of state. His name was Adams. ;D
Puerto Rico had been under Spanish rule for approximately 400 years before the United States invaded the island in 1898. Spain claimed Puerto Rico in 1493, shortly after Christopher Columbus's arrival in the New World. The U.S. invasion occurred during the Spanish-American War, which resulted in Puerto Rico becoming a territory of the United States.