BRUSSELS — Europe’s top diplomats are assessing a new deal with Israel to deliver humanitarian aid to Gaza, according to Kaja Kallas, the European Union’s foreign policy chief.

Israeli Prime Minister Benjamin Netanyahu has attended a memorial service for two slain Israeli Embassy staffers at the end of his trip to Washington.

Whether by design or necessity, the breakdown in diplomacy was quickly followed by a sharp escalation on the ground. The intensified IDF actions in Gaza over the weekend can be seen as the continuation of negotiations by other means.