US president Barack Obama today welcomes arguably his least favourite foreign leader to the White House. Israeli prime minister Benjamin Netanyahu’s visit neatly coincides with the annual policy conference of the American Israel Public Affairs Committee (Aipac). That event offers both men a chance to appeal to some of Israel’s most ardent American supporters. We can therefore expect to hear repeated references to the “common interests”, “unshakeable bonds” and “shared values” of the two countries.

This familiar rhetoric is misleading at best and at worst simply wrong. No states have identical interests, and Israel and America are at odds on two vital issues: Iran and the Israeli-Palestinian conflict. Mr Obama should continue to rebuff Israel’s efforts to push him into military confrontation with Tehran, while reminding Mr Netanyahu the true danger to Israel lies in its refusal to allow a viable Palestinian state.

On Iran, Mr Netanyahu is convinced it wants nuclear weapons, and that this goal threatens Israel’s existence. He does not think diplomacy can stop Iran, and wants the US to destroy its nuclear facilities. If Mr Obama refuses to order an attack, the Israeli leader would like a green light to do so.