Article II of the constititution grants the president broad authority to direct military operations, deploy troops, conduct military strikes and respond to threats to national security.

Carter deployed troops to Iran without congressional approval, Reagan deployed troops or air strikes to Grenada, Libya and Lebanon without congressional approval. George HW Bush deployed troops to Panama and Somalia without congressional authorization using executive authority and broad interpretations of the 2001 AUMF. Clinton intervened in Haiti, bombed Bosnia and Kosovo, and performed air stikes in Sudan and Afghanistan. George W Bush conducted strikes in Pakistan, Somalia and Yemen without congressional approval. Obama used troops or Airstrikes in Syria, Iraq, Afghanistan, Libya, Yemen, Somalia and Pakistan and notably sent US troops into Pakistan to apprehend Osama, a sovereing country without congressional authorization. Trump hit Syria and conducted strikes in Iraq against Iran without authorization. Biden conducted strikes in Syria and Iraq and assisted Ukraine in many ways although supposedly not through direct military involvement without congressional authorization.

I’m not sure why there is a sudden argument over whether Trump should be hamstrung, delay opportunities and eliminate surprise completely by having a congressional debate over acts of war that are not declarations of war that have been performed by virtually every president in modern history. It’s just not how the US Government works and Trumps actions in this case are completely in alignment with our norms.