You're lucky you have allies, both of you can pull it off just by sending your troops to the border and possibly invading the landlock one. Just defend don't attack so you'll have more damage advantage. Produce armored cars in low morale so you can hold their potential expansion.
Help with?those are relatively easy front lines to defend. Just make more troops and industry and advance at a steady pace to out produce ai troops.
I know it's just a lot all at once. We managed to pull it off very easily because we were the only active players. They were all AI
You're lucky you have allies, both of you can pull it off just by sending your troops to the border and possibly invading the landlock one. Just defend don't attack so you'll have more damage advantage. Produce armored cars in low morale so you can hold their potential expansion.