Spy offense is way too overpowered now.
Twice in the last 2 wars, I have been spied 4x and had all my spies killed off. Then all the nukes were killed off. Then all the missiles. 4 spy assassinations and you are utterly defenseless for the next month. Not only that, but you are utterly offenseless for the next month as well.
Something needs to be changed so 4 spy assassinations to you are not crippled.
Reduce the amount of assassinated spies.
Change to spy offense and defense. Spies, and Counter-espionage.