The US is mounting its largest military buildup in the Middle East since 2003. Here's a list of the weapons and hardware that it's sent to the region as the Trump administration pressures Iran to strike a deal that would limit its nuclear and military capabilities.

At least a dozen warships collectively worth an estimated $50 billion have been deployed to the region. Satellite imagery shows the US Navy aircraft carrier USS Abraham Lincoln in the Arabian Sea, and a second carrier strike group led by the USS Gerald R. Ford is on the way. The buildup also includes a variety of military aircraft and missile defense systems.