Possibility... the reality is a resolution made by the un security council can get us into a war/conflict without any vote by congress. Congress in 1945 delegated its war powers.
It couldn't be disapproved because we have veto power in the Security Council. On another note, I personally think we should stay a member of the U.N. but we should stop all payments to them. The U.N. has become more of a tool to be used against us by states that don't like us. And, there is so much corruption with our money at the U.N. it isn't funny any longer.
Doesn't work that way: Only the Security Council has the power to make binding decisions that member governments have agreed to carry out, under the terms of Charter Article 25. It's an automatic veto without a United Nations Security Council resolutions. Like I said... Congress delegated its war powers to the UN security Council.
If you brought the issue going into Iraq War, would you be surprised if they would have told you it is not true?