SINGAPORE (AP) — French President Emmanuel Macron and U.S. Defense Secretary Pete Hegseth are among the world leaders, diplomats and top defense officials in Singapore this weekend for a security forum that will focus on China's growing assertiveness, the global impact of Russia's war on Ukraine and the flare-up of conflicts in Asia. Macron opens the conference with a keynote address Friday night that is expected to touch on all of those issues, as well as the pressure the hefty tariffs announced by President Donald Trump's administration is putting on Asian allies. It's Hegseth’s first time to the Shangri-La dialogue, hosted by the International Institute for Security Studies, which is taking place against the backdrop of heightened rhetoric between Beijing and Washington due to the Trump administration’s threat of triple digit tariffs on China, and some uncertainty in the region over how committed the U.S. is to the defense of Taiwan, which also faces possible 32% American tariffs.