Which political button reflects the connection between the Vietnam War and the passage of the 26th Amendment to the U.S Constitution?

The "Old Enough to Fight, Old Enough to Vote" political button reflects the connection between the Vietnam War and the passage of the 26th Amendment to the U.S. Constitution. This button emphasized the inconsistency of allowing 18-year-olds to be drafted to fight in the war while denying them the right to vote. The movement gained momentum, leading to the ratification of the 26th Amendment in 1971, which lowered the voting age to 18.