Dow drops 400 points as 2,200 US Marines head to the Middle East

The Dow Jones Industrial Average tumbled over 400 points as reports emerged that 2,200 US Marines are deploying to the Middle East. This escalation coincides with the deadline for President Trump's ultimatum to Iran. Brent crude futures gained 4%, climbing back above $100 per barrel. West Texas Intermediate (WTI) futures also surged nearly 5% to $93.