U.S. President Donald Trump said he’s prepared to join the European Union to impose sweeping new tariffs on India and China as he looks to ratchet up pressure Russian President Vladimir Putin to join ceasefire talks with Ukraine.

Trump made the ask when he called into a meeting with senior U.S. and EU officials in Washington, according to people familiar with the discussion who asked not to be identified discussing private deliberations. The U.S. is willing to mirror tariffs imposed by Europe on either country, one of the people said.

Other potential measures discussed by U.S. and EU officials include further sanctions on Russia’s shadow fleet of oil tankers as well as restrictions on its banks, financial sector and major oil companies, according to the people. Any EU sanctions would require the backing of all member states, and several nations, including Hungary, have blocked more stringent measures targeting Russia’s energy sector in the past.