How are you thinking of getting America of well....actually reaching Britain. They need a base in Europe and I'm pretty sure France will tag along with Britain.
Well, IMTL the UK supports a less lenient end of WWI (Given a better German position), while France still wants to scr*w Germany. This is not possible however, so France ends up angry towards the UK for this, but said anger will
eventually subside. However other events occur that indicate to France that the British are siding with the Germans and this drives a bigger wedge between them. Successive French governments (That year of **4** governments anybody! - OTL event too) blame the UK / German "friendship" on France's poor position rather than their failed economic policies. This in turn drives France closer to America, Italy and (of all people) Russia.
Russia because "The enemy of my enemy is my friend" kinda thing, and because they want to see a wedge in European alliance. Italy due to WWI friendship etc an America for Trade (Due to the UK / Germany etc buying from each other. Yes, they DO also buy fairly from France, but not so much America, whereas France does).
France, well because she is upset and the UK, Germany, etc are out. This only leaves Russia, USA and a few other smaller nations.
So this will actually possibly give America a base in Europe (In reality no as the RN / HSF can easily intercept), but there are other..... Possibilities..... Shall we say.