Clone swamp troopers were specialized Clone Troopers. There are actually two types of swamp trooper minifigures. The first kind is what Lego® calls a "Kashyyyk Trooper" (see image), the other kind looks like a regular Clone Trooper, only with green markings on their armor, including two green stripes on the helmet (See Gallery). They were part of the 41st Elite Legion, and were led by Commander Gree. The 41st was commanded by two Jedi generals, Luminara Unduli and Yoda. When Order 66 was issued, the 41st was on Kashyyyk. The Clones killed Unduli, but Gree and another trooper were struck down when they attempted to kill Yoda.