Non-Aggression Law

The Non-Aggression Law was an act passed by the Chiss Ascendancy in 965 BBY. It forbid any act of pre-emptive or aggressive military actions to be undertaken by the Chiss.

Thrawn's violation of the Non-Aggression Law in 27 BBY, when he destroyed the Outbound Flight, led to his exile from the Ascendancy.

Knowing that the Chiss would never pre-emptively strike, in 36 ABY Jacen Solo, who wished to exterminate the Killiks, attacked a Chiss ship in an attempt to pin the blame on the Killiks.