Now that it is clear that the visits of US President Joe Biden and British Prime Minister Rishi Sunak to West Asia have yielded sub-optimal results, it is critical that the global diplomatic efforts focus on de-escalation to relieve the mounting humanitarian crisis in Gaza. Mr Biden’s visit to Tel Aviv — as, indeed, those of the German and French heads of government — has achieved little beyond persuading the Israelis to allow the opening of a narrow corridor from Rafah on the Egyptian border to enable the flow of humanitarian aid to non-combatants trapped in Gaza. But agencies insist