Censor.NET reports citing Interfax-Ukraine.
Polish Presidential Administration wrote on Twitter the two presidents talked about the U.S. troops in Poland, strengthening security in this part of Europe, about the situation in Ukraine, as well as the upcoming Zapad-2017 drills of Russian and Belorussian troops in Belarus, Liga reported.
Trump reiterated his country's commitment to maintaining peace and security in Central and Eastern Europe.
"Our strong alliance with Poland and NATO remains critical to deterring conflict and ensuring that war between great powers never again ravages Europe and that the world will be a safer and better place. America is committed to maintaining peace and security in Central and Eastern Europe. We are working with Poland in response to Russia's actions and destabilizing behavior," the U.S. president said.
Trump said there were 5,000 U.S. servicemen in Poland now.
The U.S. President also welcomed Poland's important role in the issues of bilateral military cooperation, as well as the fight against terrorism, in particular against ISIS.
Trump arrived in Warsaw on July 5 on a 16-hour visit. He is also scheduled to meet the president of Croatia there.