Who was the power of war declaration?

The power to declare war traditionally resides with the legislative branch of government, such as Congress in the United States, as outlined in the Constitution. This authority allows lawmakers to engage in discussions and vote on matters of war and peace. However, in practice, presidents have often taken military action without formal declarations of war, citing their role as Commander-in-Chief. This has led to ongoing debates about the balance of war powers between Congress and the presidency.