Datang: It's a showdown, I'm a scumbag
Li Shimin: What's that...... I want to fight Goguryeo!
Du Aitong: Goguryeo? I've already bought it!
Li Shimin: What's that...... Recently the Turks have resurged, and I think ......
Du Aitong: No, you don't want to, those people are grazing for me!
Li Shimin: What's that ......
Du Aitong: Forget it, don't say it, I know ......
Li Shimin: ......
[This story is pure fiction, don't take history books hard]