Washington (CNN) -- A Senate committee began its assessment of intelligence reforms put in place after the September 11, 2001, terrorist attacks by focusing Wednesday on the alleged Christmas Day attack aboard a plane landing in Detroit, Michigan.

CNN: Senators hear testimony on alleged Christmas Day bomb plot

But his military career was ended abruptly when his left leg was blown off in an attack by Argentinian fighter planes on the landing ship, Sir Galahad.

BBC: Soldiers join war trauma lawsuit

During an assault on a target, for instance a shore landing, the vessel is responsible for providing a sustained attack on an enemy.

BBC: News | In Depth | Military Fact Files