I take a planet in... one month. No pillage possible. It's normally hard with countries, but planets are taken fast with no following guerrilla war neither (ie.IRAQ).

Wanna go Civilization IV style with pillage? Aim at infrastructures and run away!


The enemy is sending reinforcements? Hit harder by using nasty chemicals NOW!


Getting messy after 2 months? Negotiate a sweet deal.


Bigger planet? Bring reinforcement.


I guess it'd be nice if it'd extend on a few months, for the feeling just as strategy. Same system, just over monthSSS.
Hit them hard = take them faster, get more resistance
Use soft power = lesser resistance after


So it's just an idea of mine for the future. Comment at will