LAUNCHER DEMO U.S. Marine Corps Cpl. William McDougall demonstrates the use of the M-203 grenade launcher to fellow Marines and members of the Philippine Air Force as part of a weapons familiarization seminar during Exercise Balikatan 2011 on Clark Field, Philippines, April 7, 2011. Balikatan means "shoulder to shoulder” in the Tagalog language spoken in the Philippines. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 960602-O-QMV74-860.jpg Photo Gallery