The unnamed soldier made the comments in a video message posted by Ukraine's Ministry of Defense on Twitter.
"We will not give them a platform for their propaganda," said Christoph Heusgen, conference chairman.
The Global Times, which is published by the Chinese Community Party, warned of the "risk of war" and accused the United States of "inflaming" tensions.
South Korea's president convened an emergency meeting, and Seoul's mayor cut short a trip to Europe to return to address the crisis.
The Republican Party has already filed numerous impeachment resolutions against the Biden administration, to no avail.
China is now no longer satisfied with the status quo, the secretary of state said.
Russia's newest attacks come as its Ministry of Defense is moving forward with the purchase of at least 10 unmanned underwater vehicles.
The Russian president is "trying to shift to a stalemate," said one expert on Russian-Ukrainian relations.
Ben Hodges said Russian troops are "exhausted" and facing more challenges than expected from a high-morale Ukrainian military.
White House National Security Adviser Jake Sullivan warned Russia would face ""catastrophic consequences" for using nuclear weapons.
Russian President Vladimir Putin has been accused of nuclear saber-rattling by Western leaders.
Fighting recently broke out along the border of the two countries in western Asia, creating concern that older conflicts could be reignited.
The U.S. secretary of state's surprise visit to Kyiv came after the announcement of a $2.2 billion aid package to Ukraine and neighboring countries.
Part of a proposed $2 billion aid package would go to countries neighboring Ukraine that are "potentially at risk of future Russian aggression."
China's internet censors continue to scrub references to the August 31 report published by the U.N. Human Rights Office, the U.S.' top envoy in Beijing said.
President Joe Biden was first briefed on a potential Russian invasion of Ukraine last fall, according to a new report.
The ex-president criticized the plan to swap Russian arms trafficker Viktor Bout for the basketball star and former Marine Paul Whelan.
"This is why dictatorships ... take Americans hostage, because they know they'll get something for it," said Republican Representative Mike Waltz.
The Kremlin has long pushed for Bout's release, calling his detainment in the U.S. "unlawful."
The G20 meetings in Bali are expected to be dominated by tensions sparked by Russia's invasion of Ukraine.
A report of sanctions on Russian individuals and defense manufacturers not being punitive enough follows new worldwide sanctions imposed this week.
The secretary of state said Sunday that "when it comes to Putin's strategic objectives, he's already failed."
The U.S. ambassador to China tweeted that the secretary of state's remarks were being repeatedly deleted from Chinese social media sites.
Blinken said that "Ukraine's sovereignty will prevail and will be there long after Vladimir Putin has left the scene."
NATO Secretary General Jens Stoltenberg and U.S. Secretary of State Antony Blinken discussed the war in Ukraine during a joint news conference on Wednesday.
The Chinese military's combat patrols took place a few hours before Illinois Sen. Tammy Duckworth landed in Taipei for her second visit in two years.
Radio intercepts placed the Chinese military training within a six-hour window on Monday morning.
U.S. Secretary of State Antony Blinken sharply rebuked China for maintaining close ties with Russia as the war in Ukraine continues.
In the wake of this latest tragedy and the ongoing violence, re-designating Nigeria as a CPC should be an immediate U.S. policy objective.