Why did Trump and Xi seal a deal on World War II soldiers’ missing remains?

During Chinese President Xi Jinping's recent three-day state visit to the United States, a renewed commitment was made by both Beijing and Washington to recover the remains of U.S. servicemen missing in China since World War II. This agreement, part of an eight-point list of outcomes from the summit, signifies a continuation of a decades-long effort between the two nations. The joint commitment to address the issue of missing soldiers' remains was highlighted in a statement released by China's foreign ministry following the leaders' meeting. The agreement on this humanitarian issue was included alongside other accords concerning artificial intelligence and trade.