Operation Avalanche and the Italian mainland. The Allied invasion of Sicily in July 1943, codenamed Operation Husky, was highly successful, although many of the Axis forces there were allowed to avoid capture and escape to the mainland. More importantly a "coup" deposed Benito Mussolini as head of the Italian government, which then began approaching the Allies to make peace. It was believed a quick invasion of Italy might hasten an Italian surrender and produce quick military victories over the German troops that would now be trapped fighting in a hostile country. However, Italian (and more so German) resistance proved relatively strong, and
Operation Hornbill (World War Two) by Hedleys Folboat section for army testing, were found to be extremely unstable in any but flat water and also infringed Hoehn's patent. ‘Special Operations Executive’ (SOE), the British clandestine warfare agency, was behind Ivan Lyon’s scheme, but because of the shortage of required submarines to help reconnoiter and deploy the small craft, and the growing complexity of the plan, the project was eventually shelved. Operation Hornbill (World War Two) Operation Hornbill was a proposed commando operation by Australian forces during World War Two. It was proposed by Ivan Lyons following the success of Operation Jaywick. A precursor to Operation