Incoming foreign minister Julie Bishop says the United States will have to make a case before the United Nations for military intervention in Syria.
US president Barack Obama will urge Congress this week to back military intervention in Syria, saying he wants to deter the regime from further attacks.
Ms Bishop told Sky that she has already discussed the issue with Britain's foreign secretary William Hague.
I spoke with foreign secretary William Hague last evening and we've set up another time to discuss it in more detail early this week. There's also to be a debate at the United Nations and clearly the United States will need to make out a case for military intervention.