The Louisiana Purchase, which was actually made by Jefferson himself, was a shift in his general principles because it required great power on behalf of the federal government, which Jefferson himself didn't like. The same goes for the Monroe Doctrine.
It was after the Battle of Antietam
<span>The United States had to give up its missiles in Turkey.</span>
Answer: The Battle of Iwo Jima was fought between the Japanese army and the United States Marine Corps (USMC). The battle, known to the USMC as "Operation Detachment", started on February 19, 1945 and lasted until March 26, 1945 when the last Japanese soldiers were captured or killed.
