The T34 Calliope is a type of tank with a unique feature. It has a platform on top of the tank that is covered with rocket launchers. The tank was used by the United States during World War II. The rockets that were fired from the launchers were called "calliope rockets" because when they were launched, they made a sound like a calliope, which is a musical instrument. The T34 Calliope was designed to stop the enemy from advancing, to help the other tanks, and to provide ground support for the infantry. It was a very powerful weapon and caused a lot of destruction on the battlefield.