US before at war?

[Commando Brado]

Can the US land aircraft in UK or Allied territories before they’re at war?

[Robbernosky]

Dont think so, no.

[Ruanek]

@Commando:

Can the US land aircraft in UK or Allied territories before they’re at war?

No nation, while neutral, may enter another nation’s territory (even for friendly neutrals).

[Warpiglet]

I have taken Spain and weakened turkey and Sweden so the axis get little benefit from the true neutrals.  I build many mech armor and a few aircraft with russia.  While us starts opening a front in Spain, I like to swing the Russian forces through Turkey into the vicinity of Greece.  If Germany is committed north or deep into Russia, they quickly face fronts in the south and west in a swift coordinated move.  I like hitting Spain…if turkey and sweden are dealt with too…