U.S. deploys more troops to Middle East, blames Iran for tanker attacks

President Donald Trump's administration also invoked the threat from Iran to declare a national security-related emergency that would clear the sale of billions of dollars' worth of weapons to Saudi Arabia, the United Arab Emirates and other countries without required congressional approval.The actions were the latest by the Trump administration as it highlights what it sees as a threat of potential attack by Iran, and follows decisions to speed the deployment of an aircraft carrier strike group