President Donald Trump has started his visit to the G7 summit by hailing an agreement aimed at ending the U.S. conflict with Iran. Trump met Monday with French President Emmanuel Macron and called the deal a potential breakthrough for global security. The Republican U.S. president says the deal could lead to positive changes in the Middle East. The agreement has yet to be fully detailed but might alter the dynamics of the summit, where Trump has faced criticism from European leaders for his decision to start the war without consulting them. Macron is among the leaders who've criticized Trump over the war but congratulates him for finding an agreement with Iran.