Event: Jon Snow - Executive Decision (Political Wins)

Episode 7: The Dragon and the Wolf at 26:54
26:54 (+3) Jon Snow:
In what is universally regarded as a terrible idea by all sides, Jon single-handedly dissolves the Lannister-Targaryen truce in the name of honor and hopefully getting into Daenerys' pants later.

Cersei: "In return, the King in the North will extend this truce. He will remain in the North where he belongs. He will not take up arms against the Lannisters. He will not choose sides. ... I know Ned Stark's son will be true to his word."
Jon Snow: "I am true to my word. Or I try to be. That is why I cannot give you what you ask. I cannot serve two queens. And I have already pledged myself to Queen Daenerys of House Targaryen."
(Executive Decision)