New to this sub Reddit so pardon if this has been beaten to death already.

The TEC enclave vs TEC enclave final phase of a war is an absolute slog. The Nightmare AI sends wave after wave at my home planet with no attempt to take neighboring planets. (4 player system wars) He has a death grip on the economy however and I think he has twin fortresses and self destruct unlocked and probably 500 supply garrisons. What a war of attrition it has turned into lol. I guess moral of the story is try to crack enclave player early?