@Imperious:
Britain joins after an attack on any neutral (only the CPs can ever attack neutrals!)
USA really needs a chart to track its attitude to war; its entry certainly shouldn’t be automatic after X turns.
The game would be ruined since the Central powers would avoid UK the entire game, A variable entry USA is also a game breaker. It must be fixed because the games balancing would prove impossible. The game must be Historical, not full of nitpicking rules that destroy play balance.
How is a fixed entry in any way historical, unless you think that everything that happened HAD to happen as it did? There can be balance without scripting the game (Russian Revolution happens turn Y, Italy enters turn X, USA enters turn K, etc etc etc)
One cool way for USA to enter that my friends and I did for 1939 Europe and for WWI was a provocation system.
For example, it’s 1 pt for every allied DD/TRN that is sunk on a axis/cp turn, 2 pts for battleship/carrier.
2 pts for every IPC germany collects from a neutral territory, 1 for every IPC a Central/axis power collects from an originally french/british territory, plus some for convoys (which changed based on game for us, you get the idea), and MINUS points for every IPC that is SBR’ed out of Germany.
If the points are at a certain total on USA’s turn, they declare war.
This adds a dynamic to the game that is new and interesting for A&A, where wholesale beatdown of the enemy must be balanced with the threat of a sleeping giant. Adds a lot of variety to the game.
There may be some whining about how that makes the game too political, but WWI was a very different war from WWII and to think that the US entry had to happen because it did happen is a disservice to any attempt at studying history and making a game historical.
Will it be harder to make the game balanced for both sides if the US entry is based on actions rather than a preset schedule that ignores the conditions in the game? Probably. But, unless what you like in A&A is the ability to replay the exact same scheduled events over and over again with a little variability in dice to spice it up, it will be a better game if the political situation is decided by factors that would decide it in reality rather than scheduling it based on what already happened in reality, ignoring that differences in events leading up to those key events that you would script would in fact change the script.