The outlines of the probable counterterrorism strategy under U.S. President Donald Trump have emerged. And judging from what is known, though a more intense campaign against the Islamic State and other terrorist groups could lie ahead, the core of Washington's strategy — relying on local forces to do the brunt of the fighting — will likely remain unchanged. On Monday, U.S. Defense Secretary James Mattis briefed White House strategists on his 30-day strategic review of the fight against terrorism. Based on Pentagon statements and leaked information, the options he outlined represent more an intensification of current efforts rather than a seismic shift in strategy. The United States may look to increase its military presence in a number of areas, particularly in Syria, Yemen and Somalia , but the commitment of U.S. forces to any of those theaters is expected to remain limited.