[blahyawnblah]

No. The president is the commander in chief. I can't remember the president or the situation but a long time ago a president attacked and said "I'm sending the troops" then senate/congress had to approve it or troops would be stranded.

[Anduia]

You are thinking about Truman sending the troops to help South Korea. However, he had UN backing.

The War Powers Act of 1973 was approved literally to avoid it happening in the future.