War in Iran: does Trump have an endgame?

Why is America at war with Iran? When will the conflict end? Two weeks after the launch of the joint US-Israel campaign, the answers to these questions remain no clearer, said Lee Siegel in The New Statesman.

Donald Trump's declared goals change all the time: it's to liberate Iranians; to eliminate an imminent nuclear threat; to destroy Iran's ballistic missiles; to avenge the US. As for how long the war could last, Trump declared last Friday that the US wouldn't stop until it secured Iran's “unconditional surrender”.