The U.S. military is moving roughly 9,000 troops aboard a group of ships to the Middle East. The move follows President Donald Trump's warning of possible new strikes against Iran. Trump has suggested there are early indications linking Iran to a co-pilot who attempted to crash an Israel-bound flight on Wednesday. The president is warning of retaliation if the link is confirmed. As for the ships, they can carry more than 7,000 sailors and 2,000 Marines. A U.S. official says this deployment could mean three carriers will be in the Middle East as early as the end of October.