More than three years on from Russia's full-scale invasion, Ukraine has said it is ready to accept an immediate 30-day ceasefire proposed by the US following talks in Saudi Arabia.
US Secretary of State Marco Rubio said he would present the offer to Russia, with the ball now in their court.
The meeting between the two countries in Jeddah was the first official one after the clash between Ukrainian President Volodomyr Zelenskiy and US President Donald Trump last month at the White House.
Senator Wong said Russia should agree to the deal and end its war.
"The pressure is on Russia now that the Ukrainians have made their position very clear that they are willing to consider a 30-day ceasefire," she told Sky News on Wednesday.
Asked if she was intimidated by Russia's warning against boots on the ground in Ukraine, Senator Wong said "no".
"Australia doesn't blink in the face of that sort of bullying," she said.
"What the prime minister has said, that we are open to considering any request for assistance, including peacekeeping. That's what he said.
"We stand up for Ukraine because we don't believe the world can stand silent and passive in the face of a larger power invading another country and taking its territory and killing its people. It's a very simple proposition."
Ukraine's ambassador to Australia Vasyl Myroshnychenko said his country had offered practical and positive steps to peace, through the US.
"The ball is now on The Kremlin's side including to exchange prisoners and return kidnapped Ukrainian children," he said.
Professor Peter Dean, from the University of Sydney's United States Studies Centre, said the deal had to be acceptable for Vladimir Putin's regime, while also providing a level of security for Ukraine and Europe.Â
"We were looking at an ongoing, endless war a few months ago and it looks like there's going to be a peace deal," he said.
"It's going to be one that neither side are happy with."
Professor Dean said he suspected the final deal would be a lot more reasonable than initially thought given the "theatre" of the meeting with the Ukrainian president.
Opposition foreign spokesman David Coleman welcomed the US and Ukraine working together, and said tanks that had been committed to the nation by the Albanese government last October must be delivered.
"We all want to see peace, but it's got to be a peace that respects Ukraine, that respects its sovereignty, that respects its security," he told 2GB radio.
"And it remains to be seen how Russia will respond."
Australia has committed more than $1.5 billion in aid to Ukraine since the war began in February 2022.
