What is Trump's stance on U.S. troop presence in Europe and how might it impact European defense?

Trump has indicated he wants to withdraw about 20,000 U.S. troops from Europe, which would still leave 80,000 troops - more than the entire British army. While Trump has been critical of Europe's defense spending, stating correctly that European nations have spent decades relying on the United States for defense while prioritizing social welfare programs. Dov Zakheim, Former Under Secretary of Defense, cautions against firm predictions about Trump's policies, noting that Trump often proposes ideas to gauge reactions before committing to them. The potential troop reduction highlights the urgent need for European nations to increase their defense spending and take greater responsibility for their own security rather than depending heavily on U.S. protection.