Yes, I was thinking to be able to not only advance from where you just attacked from but from chained areas be able to advance and fort to on area as you go. I know that in a sequential game the player that moves first can have the advantage, but such is the bread so to speak everything is random as far as drops and who goes first anyhow. If it is played in an freestyle game then its fair for all. It might not be everyones cup of tea but that is why it would be an option just like fog, not everyone likes fog but its an option.
Now, I dont know anything about how it would be implemented and so I'm not going to say too much because I dont know if it is worth the trouble to make that an option. I just was wonder about it.
Maybe make it something that you get peanlized for, like for every area the troops have to move you lose 1 or a percentage and at a minimum 1 or something like that. So if you have 3 on Chicago, LA, and Bogota and then you take Mexico City you can still in attack mode send your troops from Chicago and LA to Bogota and then attack Lima and Sao Paulo and so on and so forth. Now with a penalty for the move if that was incorperated you wouldnt be able to send Chicago while in attack mode because you would loose all your troops because you would only have two that can be sent and it cost three to get there but from LA you could send one. At the start of the game you wouldnt have enough on most areas to make it a big advantage. but later in the game if you think its worth it you can do it.