Bahrain and U.S. troops who have participated in naval interception training under the Proliferation Security Initiative (PSI) against weapons of mass destruction on October 30 (local time) are returning to their ships at Gulf after completing cargo inspection on a suspicious ship on the open seas at the Northeast Gulf from Bahrain. It was the 25th naval training drill since the PSI was inaugurated in 2003 and lasted for two days from October 30 to 31.