Via FP's e-briefing:
There are about 700 U.S. troops currently serving as observers in the northern part of Egypt's Sinai Peninsula as part of a decades-old peace pact between Egypt and Israel. But they may soon pull out of that base and move to another outpost further south. The move would come as a result of growing American concerns over the dangers presented by the Islamic State on the peninsula, though U.S. officials stress no final decision has been made.
Based on this report:http://edition.cnn.com/2016/04/05/politics/us-sinai-deployment-egypt-israel/?

A couple of weeks ago the UK announced a temporary deployment of engineers to help the MFO at a new base. That 'special relationship' again.