President Donald Trump has urged Russia to stop “destabilizing” Ukraine and other countries and end support for “hostile regimes” such as those in Syria and Iran.
Speaking in Warsaw, Poland, Donald Trump urged Russia to “join the community of responsible nations”.
Russia rejected the president’s comments.
Donald Trump has traveled to Hamburg for the G20 summit, where he will meet Russian President Vladimir Putin for the first time.
The president also faces differences with other leaders, including German Chancellor Angela Merkel, who said last week that the G20 would focus on the Paris climate deal – which the US has withdrawn from.
Up to 100,000 protesters are expected over the two-day event and police have warned of potentially violent clashes. They have already confiscated a number of homemade weapons.
In Warsaw, President Trump argued that the future of Western civilization itself was at stake and asked whether the West had the “will to survive”.
He urged Russia to join the “fight against common enemies and in defense of civilization itself”.
Donald Trump also hailed Poland as an example of a country ready to defend Western freedoms.
Poland’s conservative government shares President Trump’s hostile view of immigration and strong sense of sovereignty.