Poland's Tusk also spoke of a diplomatic offensive to find a new security format in Europe, also by involving Turkey in a closer role.
Tusk said that Putin's Russia was looking to "use traitors of the European interests or helpful idiots" to cause divisions among the western countries.
"You would not want to be Viktor Orbán yesterday … after the Swedes, the Danes, the French, everyone, with no exception – the Slovak [Robert Fico] kept silent, but in the end voted with us – talked about the future of Ukraine," he said.
Turkish president Recep Tayyip Erdoğan on Friday threw his support behind a call by French president Emmanuel Macron and Ukrainian president Volodymyr Zelenskyy for an aerial and sea truce in the Russian aggression on Ukraine.
"We support the idea of establishing a ceasefire as soon as possible and stopping attacks in the air and at sea as a confidence-building measure between the parties," Erdoğan told an online meeting organised by the EU.
