US President Donald Trump says the deal agreed between Israel and Hamas marks the first steps toward a "strong, durable, and everlasting peace" that will end the two-year-old Gaza war. Yet Wednesday's agreement reached in the Egyptian resort of Sharm el-Sheikh, a favoured location for Middle East peace conferences over the decades with a patchy record of success, is only an initial phase covering handing over hostages held in Gaza, exchanging them with Palestinian prisoners inside Israel and a partial withdrawal of Israel from the enclave. Plenty of pitfalls remain after negotiators left for later discussions about some of the thornier issues on which previous initiatives have foundered, such as the full extent of an Israeli withdrawal, the disarmament of...