Should parliament be able to vote on whether to go to war? Former-intelligence-officer-turned-MP Andrew Wilkie argues yes

The decision to invade Iraq in 2003 was not made by an act of parliament, as is the case in many other countries. (Getty Images: Spencer Platt)

War whistle-blower-turned-independent-politician Andrew Wilkie has used the 20th anniversary of the invasion of Iraq to demand an overhaul of how Australia decides to declare war.

Australian and British troops joined a US-led invasion of Iraq in March 2003, over suspected weapons of mass destruction (WMDs).