Operation Bellicose

The Operation Bellicose strategic bombing in World War II targeted the Nazi Germany Zeppelin Works in Friedrichshafen and the La Spezia, Italy, naval base and was the first use of shuttle bombing in World War II and the second use of a Master Bomber. In early June 1943, a Central Interpretation Unit photo interpreter (Claude Wavell) identified a stack of ribbed baskets (Würzburg radar reflectors) at the Zeppelin Works. After Winston Churchill viewed the photos at RAF Medmenham on June 14, No. 5 Group RAF received the surprise orders on June 16 to attack Friedrichshafen during the next full moon.

After take-off from Britain, Wing Commander Gomm (No. 467 Squadron RAAF) took over when the aircraft of Group Captain Slee developed trouble. The Avro Lancasters bombed from 15,000 ft rather than the planned 10,000 ft due to heavy flak. First the Pathfinder Force (PFF) dropped offset markers at a distance from the target for the main bombing force to use unobscured by smoke. The second stage was to use 'time-and-distance bombing runs' from a location on the Lake Constance shore along a measured distance to the target.

The attack hit the V-2 rocket facility of the Zeppelin Works, which made Operation Bellicose the first mission that bombed a long-range weapon facility. From Friedrichshafen the planes refueled at Bilda, Algeria in North Africa. On June 23/24, eight of the original Operation Bellicose force of 60 Avro Lancasters remained in Algeria for repairs, and the remaining 52 bombed the Italian naval base at La Spezia, Liguria, damaging an "oil depot" and an "armaments store", and continued to Britain without loss.