Peace for Galilee. When these guns were outranged by rocket fire from Tyre, they were upgraded with the addition of extended range, full-bore ammunition and new powder supplied by Gerald Bull's Space Research Corporation. This allowed operations over 50 km with increased accuracy. The IDF acquired over 200 vehicles. In IDF service, the M107 is known as the Romach (spear or lance). Other M107s were extensively used by the Iranian Army during the Iran–Iraq War. The M107 was retired from the U.S. Army in the late 1970s when the gun was changed to the extended length 203mm tube making the new unit an M110A2. Users : Hellenic Army 36, 24 converted to M-110A2 : Imperial and Islamic Republic of Iran Army. : PAVN captured several M107s during the Vietnam War. Currently are in reserve storage of PAVN Artillery Corps. Former users : Israel Defense Forces. 210 in service and in store. : Spanish Army. 12, converted to M110A2 in the early 1990s. : Republic of Korea Army. 24, out of service since 2008. : Turkish Army. West Germany : Royal Artillery. : United States Army and United States Marine Corps. See also G-numbers (SNL G295) List of U.S. military vehicles by model number References External links Fas.org Globalsecurity.org Israeli weapons Self-propelled artillery of the United States Tracked self-propelled howitzers Cold War artillery of the United States 175 mm artillery Military vehicles introduced in the 1960s