 This is The World. I'm Marco Werman. With a whirlwind of talks, dinners, and press briefings, Washington hosted the NATO Summit this week, marking 75 years of the alliance. For the first time, NATO leaders came out with a forceful statement aimed directly at the People's Republic of China. They also promised that Ukraine would have a pathway for joining the alliance. But overshadowing the three-day event have been questions about President Biden's health and the future role of the U.S. in NATO.