2400.4
"We do not entirely trust you. Your treaty can wait for now" - Transmission from the Jraenar Imperium planet
AIs NEVER take non-aggression as a first treaty unless you're signing it in wartime. To get the AI to accept a treaty propose a Trade treaty, they'll probably agree to that most of the time.
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O'Neill: I have something I want to confess you. The name's not Kirk. It's Skywalker. Luke Skywalker. -Stargate SG1