Russia’s foreign minister Monday rejected the peace proposal being floated around by President-elect Donald Trump’s team to end the war in Ukraine. Foreign Minister Sergey Lavrov said Moscow was appalled over reports that Trump and his aides were considering pushing a peace deal that would keep the door open for Ukraine to join NATO.

Earlier reports from the Wall Street Journal indicated that Trump’s team is considering a plan to delay Ukraine’s NATO membership by at least 20 years in exchange for continued Western arms supplies and the deployment of European peacekeepers to monitor a ceasefire.

Russia has firmly rejected a reported peace proposal from President-elect Donald Trump’s advisers that included delaying Ukraine’s NATO membership by two decades and deploying European peacekeepers to establish a demilitarized zone.

Russian Foreign Minister Sergey Lavrov on Monday rejected proposals floated by President-elect Trump’s allies to end the war in Ukraine, dealing a major setback for the incoming president’s hopes to freeze the conflict.

Foreign Minister Sergey Lavrov also warned that even if Donald Trump “tries to relaunch bilateral ties, he will have to swim against the stream.”