The Guardian | Simon Tisdall: For better or worse, America remains the world�s leading military superpower. In Washington last week, a familiar row erupted over how best that power should be used. Past targets have included Soviet Russia, al-Qaida in Afghanistan and Saddam Hussein in Iraq. Today the international bogeyman topping the White House�s to-do list is Iran.

Once again the US is in the process of deciding whether to go to war. As always, it is a tangled, messy and dishonest business. On one side, favouring punitive action, stand the Iran hawks. They include neoconservative retreads such as John Bolton, Donald Trump�s national security adviser, who championed the 2003 Iraq invasion; Mike Pompeo, a former CIA director and Christian evangelical who heads the state department; and Mike Pence, the ascetic US vice-president.

On the other side, opposing escalation, stand Democratic party leaders in Congress and a clutch of presidential hopefuls; sceptical Pentagon generals and security agency officials who trust Bolton as far as they can toss an IED; a majority of Washington�s more important allies in the EU and Nato; and China and Russia, which oppose American global power-plays on principle.

Read more here