Tasked with making a precision attack on V-1 launch sites in northern France, "Mickey" Martin of No. 617 Squadron (The "Old Lags" squadron because it was made up of experienced and skilled veterans who had volunteered to continue flying missions beyond the end of their normal tours) used a four-engine Lancaster bomber to dive-bomb the target in order to accurately position marker flares for the following aircraft. Pulling out of his dive at a mere 400 feet Martin so accurately placed the markers that a reconnaissance on the following day showed the target to have been completely demolished.
