[3] From England, the group dive-bombed radar installations and flak towers, and escorted bombers that attacked bridges and marshalling yards in France as the Allies prepared for Operation Overlord, the invasion of the continent of Europe.The group provided cover for Allied forces that crossed the Channel on D-Day, and flew armed reconnaissance missions over the Cotentin Peninsula until the end of the month.[3] On 17 July 1944, napalm incendiary bombs were dropped for the first time in war by 14 P-38 aircraft of the 402nd Fighter Squadron, led by 370th Group commander Col Nichols, on a fuel depot at Coutances, near St. Lô, France.German Field Marshal von Kluge soon found that his armored forces moving towards Normandy were constantly beset by Allied fighter-bomber attacks.[8] Moving across France, the 370th FG hit gun emplacements, troops, supply dumps, and tanks near Saint-Lô in July and in the Falaise–Argentan area in August 1944.[8] In September 1944, the group sent planes and pilots to England to provide cover for Operation Market-Garden, the allied airborne assault on the Netherlands and Germany.[3][8] The 370th received a Distinguished Unit Citation for a mission in support of ground forces in the Hurtgen Forest area on 2 December 1944 when, despite bad weather and barrages of antiaircraft and small-arms fire, the group dropped napalm bombs on a heavily defended position in Bergstein, setting fire to the village and inflicting heavy casualties on enemy troops defending the area.It bombed bridges and docks in the vicinity of Wesel to prepare for the crossing of the Rhine, and patrolled the area as paratroops were dropped on the east bank on 24 March Supported operations of 2d Armored Division in the Ruhr Valley in April.Following the attacks on the United States on September, 11th 2001, the group's 120th Fighter Squadron assumed tasking to provide homeland defense as an integral part of Operation Noble Eagle.
P-38 Lightning, "Spirit of Oak Ridge", 485th Fighter Squadron, at Lonray, October 1944.