President Donald Trump insists the United States should control Greenland instead of Denmark, renewing tensions in Europe at a NATO summit. Trump spoke during a meeting with the summit host, Turkish President Recep Tayyip Erdogan in Ankara. Trump also announced the U.S. will lift sanctions on Turkey that were imposed after Ankara bought a Russian missile defense system. This decision could ease Turkey's re-entry into the U.S. F-35 fighter jet program. NATO is showcasing military projects worth billions, aiming to satisfy Trump. Separately, Ukrainian President Volodymyr Zelenskyy urged NATO to allow Ukraine to join the alliance.