As far as neutral fleets are concerned:
Let’s say the USA declares war on all Axis.
Can I deliberately NOT declare war on the USA with Germany so that I am not blocked by USA surface warships, and so that I can attack a zone with combined UK and USA ships without having to fight the USA ships?
DOW’s are not automatically reciprocal, correct? Is it within the design of the rules to NOT declare war after war is declared on you so that you can keep ignoring their ships? Or is the fact that the USA is at war with Germany all that is necessary so that USA surface warships can block German ships and so that USA ships can help the UK defend?
OK, now I’m pretty sure it’s the latter - that if the USA is at war with Germany (and not vice-versa) that’s all that it takes for the USA ships to stop Germany’s, and to defend its seazone if attacked. Right?