Before revision: RCAF alert crew at Zweibrücken , Germany in 1956 waiting to scramble Combat readiness is a condition of the armed forces and their constituent units and formations, warships, aircraft, weapon systems or other military technology and equipment to perform during combat military operations,Kruys, Archived from the original on November 9, 2010 on the Wayback Machine.
After revision: Royal Canadian Air Force alert crew at Zweibrücken Air Base in West Germanyin 1957 waiting to scramble Combat readiness is a condition of the armed forces and their constituent units and formations, warships, aircraft, weapon systems or other military technology and equipment to perform during combat military operations,Kruys, Archived from the original on November 9, 2010 on the Wayback Machine.