Elon Musk is taking on a new role in the Trump administration, this time helping the Pentagon determine which weapons and technology American troops will need to fight the wars of the future.War Secretary Pete Hegseth announced Wednesday that Musk will co-lead Project Meridian, a new Pentagon initiative tasked with looking years and even decades ahead to identify emerging domains of warfare and the capabilities the U.S. military will need to dominate them.Musk, the former leader of the Trump administration's Department of Government Efficiency (DOGE), will lead the effort alongside defense tec...