@FranceNeedsMorePower one of the strategies suggested is the Norway Knockout which is a big, naked transport landing in Norway by the US on turn 3, with the buy being 6 strat bombers; they can fly to Norway on US4 and start pummeling German ICs US5.
However that takes first round transport buy, second round move to Iceland with UK providing fleet defense, and then ideally UK landing UK 2 and US reinforcing with any air units its brought over and the 5 transports. Suddenly you have ~12 ground units and some air there to hold it and Germany usually can’t take it back.
Then UK sends more defenders as needed and US starts bombing away.