How do I win this?

I'm basically at war with a coalition right now. My enemies are UK, British Egypt, and Italy. I'm allied with the Soviet Union. His forces are getting crushed by the British and it looks as if he's inactive. There are a few more countries that are not involved. Mongolia, Nationalist China, and Canada. If I had a larger army I could crush all three of them. However, in this situation I'm playing as Persia, so I do not. I have only a little more than 60 units I have around 15-20 interceptors and bombers. The rest are practically ground forces. I only have 2 destroyers. While, UK and Italy has multiple battleships. I might be able to push Egypt and UK off the Arabian peninsula. However, they would still overwhelm me in the end. Do any of you have suggestions or tips.