 According to , for the Western Allies, the intelligence provided by the Home Army was considered to be the best source of information on the Eastern Front.Home Army intelligence provided the Allies with information on German concentration camps and The Holocaust in Poland (including the first reports on this topic received by the Allies), on German submarine operations, and most famously, on the V-1 flying bomb and V-2 rocket.In one Project Big Ben mission (Operation Wildhorn III; Polish cryptonym