From the bottom of the Tigris River to the shores of the Karkh community, Soldiers from 2nd Platoon, Battery A, 4th Battalion, 42nd Field Artillery Regiment, attached to the 2nd Brigade Combat Team, 101st Airborne Division, Multi-National Division - Baghdad, discovered 340 37mm high-explosive anti-aircraft rounds in an underwater cache June 3. A concerned Iraqi citizen approached the Soldiers of "Strong" Platoon worried that the explosive material near his home was unstable. The "Straight Arrows" Battalion is part of the 1st Brigade Combat Team, 4th Infantry Division, serving a 15-month deployment in support of Operation Iraqi Freedom.