Andrew Johnson is the US president that vetoed a bill just to have it overturned by congress in less than 24 hours.
He has 48 hours to notify congress.
48 hours
The President had to report to Congress within 48 hours of ordering troops into action.
report to Congress in writing
The war powers resolution
It says that the president should inform Congress of his intention to send troops abroad within 48 hours.
While technically the President cannot declare war without Congress, under the War Powers Resolution of 1973, the President can send troops into combat as long as he informs Congress within 48 hours of doing so . Then he has 60 days and then another 30 days for withdrawal before he has to get Congressional approval or a formal declaration of war. Congress has to approve any additional funds that an undeclared war requires.
yes but he must inform congress of his actions withing 48 hours and the troops can only be in the country for 60 days unless for safety they need more time[[pulling out]] unless congress approves that the troops may stay positioned there with a decloration of war
The War Powers Act requires the president to notify Congress within 48 hours of sending troops into a combat area. There are questions whether the Act is constitutional, and this has not been definitively answered by the Supreme Court.
The War Powers Act gave the President some control over sending troops into battle. The President did not have any power to begin a conflict before this act; only Congress can declare war, but with the passage of this act, he is now allowed to send limited troops for a limited time. Congress shared a piece of their power with the President.
Under the War Powers Resolution, the President is required to report to Congress within 48 hours after introducing troops into hostilities or situations where hostilities are imminent. However, the President has 60 days to continue military actions without a declaration of war, with an additional 30 days for the withdrawal of troops. If Congress doesn't authorize the use of military force during this period, the President must cease those operations.
Congress restricted the president's war making power by introducing the veto procedure. This made possible by the separation of power that exists in the three branches of government namely executive, legislative and judicial.