ABRAMS CLEANING U.S. Marines clean their M1A1 Abrams battle tanks at Marine Corps Forces Africa, April 13, 2012, after a day of training during Exercise Africa Lion 2012. Sponsored by U.S. African Command and led by Marine Forces Africa, the exercise involved various types of training and peace keeping operations. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 063771-K-NTR80-295.jpg Photo Gallery