ONE year ago today, at a US military base in southern Iraq, the Australian flag was ceremonially lowered. After half a decade of fighting, the last of our combat troops were sent home. Like others before them, they received a heroes' welcome. No one mentioned the men, women and children they had killed in the name of peace and freedom.

THE world’s most militarily powerful nation has a new commander-in-chief. Although decidedly less hawkish than his predecessor, Barack Obama mustn’t be trusted with the control of 10,000 nuclear weapons. It’s mad that any individual has the power to destroy the planet at the press of a button.

FORTY years ago, John Lennon and wife Yoko Ono launched a powerful campaign to end the bloodshed in Vietnam. They rented billboards in a dozen cities, from New York to Athens, declaring: “War is over! (If you want it.)”

IN HIS inaugural address, US President Barack Obama pledged to work tirelessly with friends and former foes "to lessen the nuclear threat" - and already he's making good on his promise. A fortnight ago the new commander-in-chief sent Henry Kissinger, a Cold War heavyweight, to Moscow on a mission to revive disarmament talks with Russia.