Trump Heads to South Korea as APEC Summit Kicks Off

Here is a 187-word summary of the news article: President Donald Trump is traveling to South Korea as the Asia-Pacific Economic Cooperation (APEC) summit kicks off in Danang, Vietnam. Trump will meet with South Korean President Moon Jae-in to discuss the nuclear threat from North Korea, a key focus of his 12-day Asia tour. The APEC summit brings together leaders from 21 countries that account for roughly 60% of global GDP. A central topic will be the future of free trade, with Trump pushing his "America First" agenda that emphasizes bilateral trade deals over multinational agreements like the Trans-Pacific Partnership. Trump has already visited Japan and China, where he pressed leaders to do more to rein in North Korea's nuclear program. His meetings with Moon and other Asian allies are seen as crucial to building a united front against Pyongyang's provocations. The President is also expected to raise concerns about the U.S. trade deficit with China, which he has repeatedly criticized. Tensions over trade and North Korea could overshadow the summit's core economic agenda.