Before revision: Royal Canadian Air Force alert crew at Zweibrücken Air Base in West Germany waiting to scramble in 1957 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 Germany waiting to scramble in 1957 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.