The meeting is expected to be focused on arms control negotiations, among other topics, but after Russian Federation had a naval clash with Ukraine last week, Trump told the Washington Post their planned meeting is up in the air. "Maybe I won't even have the meeting".
Ukraine has also blamed the Kremlin for separatist violence in eastern Ukraine, near the border with Russian Federation. Ukraine insists they are prisoners of war, says some were seriously injured in the confrontation and has asked the International Red Cross to arrange a visit to see them.
The announcement comes three days after Russian border guards fired on three Ukrainian vessels and seized them and their crews. Three hospitalized sailors were also formally detained for two months.
The US State Department on Tuesday termed Russia's actions "a unsafe escalation" and said Washington wants to see "our European allies doing more to assist Ukraine". That fighting has killed at least 10,000 people since 2014 but eased somewhat with a 2015 truce.
Ukraine has imposed martial law in some of its border regions in response to the incident, and with a growing number of other European countries, has urged Western allies to impose additional sanctions on Moscow.
This gives Ukrainian authorities the power to mobilize citizens with military experience, regulate the media and restrict public rallies in affected areas.
France and Germany, which brokered a ceasefire and tentative peace accord between Vladimir Putin, the Russian president, and Petro Poroshenko, the leader of Ukraine, in 2015, are understood to fear such a move could split the bloc and further inflame tensions.
Because they have a system I guess.
Russia says the Ukrainian vessels sparked the confrontation earlier this week by refusing to yield upon orders from Russian border forces to change their course inside Russian territorial waters (within 12 miles of Russia's coast).
Pavlo Klimkin said that the country's forces were more prepared and better equipped than ever before and the government would not let other parts of the country go the way of the Crimean peninsula.
The Ukrainian ships did not respond to the legitimate demands coming from the vessels of the Border Service of the Russian Security Service (FSB) and the Black Sea Fleet that had pursued them in order to stop them immediately and thwart their unsafe maneuvers.