Per AI: Wars started
During President Donald Trump's tenure, no new wars involving U.S. troops as direct combatants were initiated. However, there were instances of increased military involvement and escalations in ongoing conflicts and operations, such as the fight against ISIS in Iraq and Syria. While these actions may have intensified the U.S. military presence in certain regions, they did not constitute the start of new wars in the traditional sense. Trump's administration focused on changing the approach to existing conflicts rather than commencing new ones.