Ground Combat Expansion

[Noble713]

Ground combat would take place as soon as troops are landed. For any ground battles that aren't resolved, the planet becomes contested. The planet can't produce anything like during a riot. The units of both sides remain on the planet, and as soon as

1) more troops are landed
2) a player with troops on the planet begins his or her turn

ground combat commences again. Also, militia units spawn at the beginning of the planet's owner's turn.

Um, did I leave anything out? I feel like I did but I can't think of what...