Britain, which invented the modern concept of the commando, disbanded it's ten army commando's (as the battalion size commando units were called) at the end of World War II. The Royal Marines, however, saw the commando concepts as a welcome addition to their own doctrine and retained three of their nine Royal Marine Commandos. Since World War II, the Royal Marines have maintained at least three commando battalions (called commandos, instead of battalions.) Artillery and engineer units are supplied by the army. Like the U.S. Marines, the Royal Marines realized that assault from the sea always was a commando like operation, requiring special training, bold leadership and an aggressive spirit. Although the U.S. Marines organized commando battalions (called Raider Battalions) early in World War II, these were eventually used to form another Marine Regiment before the war ended. As one marine general put it, "all marines are raiders." The Royal Marines, like their American counterparts, continued to innovate after World War II. In 1956, it was a Royal Marine Commando that launched the first helicopter assault from ships against a land target (during the invasion of Egypt). The Royal Marine Commandos were used extensively to keep the peace in Ireland during the 1970s and 80s. In 1982, it was two Royal Marine Commandos and one parachute battalion that did most of the fighting to retake the Falkland Islands from Argentina. The Royal Marines have performed peacekeeping duty in the Balkans and Africa, and served as an amphibious fast reaction force. While the U.S. Marines made a name for themselves with multi-division amphibious operations in the Pacific during World War II, the Royal Marines stuck with the commando type operations that characterize what marines spend most of the time doing between major wars. The last large scale amphibious operation took place over half a century ago (Inchon, Korea in 1950). Since then, the typical marine mission has been a quick assault using a small (usually battalion size) force.