I'm playing my first serious HIP game (0.067) as the USA, and I'm really impressed. Things up to mid-1941 have played out very realistically and almost historically, but with differences to spice things up.
However, it's September 1941 and Japan just declared war on me, and I'm confused by the sequence. I received a cascade of event windows that paused the game, including "Japan annexes the Phillippines" and a notification that my army in the Philippines had dissolved. These both happened in the same game hour, and there was no combat of any kind.
Is this right? Shouldn't Japan have had to fight my defenders before being able to control and thus annex the Phillippines? They had not declared war on the Phil.s before, and (I'll repeat) my fully-supplied and stockpiled army dissolved in the instant war was declared.
How does this work?