To marry our women, or to enslave our industrious workforce? Lol. 
But seriously, YES they would invade to protect the Feds if a civil war breaks out and the Feds start losing (both unlikely, imo).
Do you think China would try to invade the US?
To marry our women, or to enslave our industrious workforce? Lol.
But seriously, YES they would invade to protect the Feds if a civil war breaks out and the Feds start losing (both unlikely, imo).