The operation was a failure , there were no Merlin engined P-51 Mustangs available for USAAF fighter squadrons to provide Supply long-range escort until the winter of 1943–44 ) , while the P-47 Thunderbolt was inadequate .

Also during the day , USAAF VIII Bomber Command Mission 677 made Manufacturing PFF attacks Attack on Cologne marshaling yards at Gereon , Gremberg , and Eifelter ; as well as Euskirchen .

Operation Tidal Wave was an air attack Attack by bombers of the United States Army Air Forces ( USAAF ) based in Libya and Southern Italy on nine oil refineries around Ploiești , Romania on 1 August 1943 , during World War II .

This mission was one of the costliest for the USAAF in the European Theater , with 53 aircraft and 660 air crewmen lost Earnings_and_losses .

It was the brainchild of Field Marshal Sir Bernard Law Montgomery , planned Arranging primarily by Generals Brereton and Williams of the USAAF .

In 1943 , the USAAF suffered Bodily_harm several reverses in daylight and called Request off the offensive over Germany in October .

However , the USAAF introduced Choosing the P-51 Mustang , a fighter capable of escorting Patrolling the USAAF bombers to and from their targets Aiming in daylight .

However , the USAAF introduced Choosing the P-51 Mustang , a fighter capable of escorting Patrolling the USAAF bombers to and from their targets Aiming in daylight .

The USAAF dropped Motion_directional 1.46 million tons of bombs on Axis-occupied Europe while the RAF dropped Motion_directional 1.31 million tons , for a total of 2.77 million tons , of which 51.1 percent was dropped Motion_directional on Germany .

The intensification of night bombing Attack by the RAF and daylight attacks Attack by the USAAF added Cause_to_be_included to the destruction Destroying of a major part of the German 's industries and cities , which caused Causation the economy to collapse Destroying in the winter of 1944–45 .