After four months in office, U.S. President Donald Trump is beginning to hone his policy on the Middle East. As the weeks have worn on, his priorities for the region have started to emerge, and for the most part they seem to be focused on matters of security. Combating terrorist groups, including the Islamic State, and containing Iran's "destabilizing" activities in the region will be at the top of the agenda during his visit to Saudi Arabia this weekend -- his first trip abroad as the leader of the free world. From there, he will travel to Israel, where he will raise the prospect of making a fresh (albeit ill-fated) attempt at reopening the country's stalled peace negotiations with Palestinian leaders.
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