Prime Minister Anthony Albanese has said it is in "Australia's national interest" to stand with Ukraine following a virtual meeting with other world leaders designed to drum up support for ceasefire discussions.
Mr Albanese joined a call with European and Commonwealth allies on Saturday night, hosted by UK Prime Minister Keir Starmer.
Sir Keir urged the 25 world leaders, including Mr Albanese, to sign up to a "coalition of the willing" to protect Ukraine and increase pressure on Russia to accept a ceasefire.
Britain and France both say they would be willing to send peacekeepers to Ukraine in the event of a ceasefire, while Mr Albanese has said his government is open to requests.