Operation Bigamy: attacks on the airports of Barce and Bengasi (Benghazi), on the port of Bengasi and on the fort of Gialo (Jalo).
Barce: on 13 Sept. 1942 12 trucks, carrying 30 men of the LRDG commanded by Lt. Jake Easonsmith, reached a point at a distance of about 30 km from Barce, as planned. They had left el-Fayum and crossed 1,200 km of desert. The airport had good defences from the desert, but was left with a few men garrisoning the seaside; the men of the LRDG attacked along the coastal Balbia road, where the defences were low. They were able to destroy a truck and 16 airplanes and damage 7 airplanes. At 4 am of 14 Sept. they left the airport but suffered the first losses, then, during the day, were constanstly strafed by Italian fighters that destroyed 10 of the trucks; the survivors reached L.G.125 (an improvised airstrip 200 west of Giarabub) and Cufra.
Bengasi: the task force was led by col. David Stirling, fouder of the SAS, and included some soldiers of the SBS dressed as Germans. When Stirling and his trucks, in the late evening of 13 Sept. 1942, pretending to be German, approached the garrison of a check-point near Bengasi, the German soldiers opened fire (they had been informed of the possible use of this trick). Thus the British forces retreated quickly, but the return to their base was very difficult: the desert was the grave of some of the men, and 3 surrendered to Italian garrisons in the following days. The plan of this attack has been criticized by one of the men of the SBS in his memories: A. Gilbert, "The Desert War", London, Motorbooks, 1995.
Gialo: 200 men of the Sudan Defence Force, equipped also with artilley, coming from Cufra, attacked Gialo on 16 Sept. 1942. The Italian garrison, helped also by airplanes, resisted untill 21 Sept., when the British forces retreated because of an incoming Italian column from Agedabia.
(source: Tullio Marcon, "Scacco matto a Tobruk", Storia Militare n. 79 apr. 2000