Diplomats from Ukraine and five other former Communist countries rallied for the U.S. Senate’s backing.
The call was the first that Moscow accepted, according to NATO.
Objections by Republican Senators Rand Paul and Mike Lee have blocked a vote in the full Senate.
Ukraine’s fleet is looking for minesweepers and coast guard ships for the Black Sea.
In doing so, Trump also insisted that friends and partners from Europe to the Middle East to the Pacific must “pay their fair share of the cost.”
Vice president seemingly contradicts Trump at Munich conference, as the president has been critical of the alliance.
Trump's contradictory remarks on NATO, calling it "obsolete" during the U.S. election campaign but also supporting it, as well as his praise for Russian President Vladimir Putin, have deeply unsettled allies who fear for transatlantic ties.
Jens Stoltenberg announced 3.8 percent of spike in real terms across Europe and Canada.
NATO and EU officials are increasingly worried about Russia's ability to spread disinformation via TV and internet.
The upcoming mass drill is the largest such operation on Lithuania’s borders, according to a lawmaker.
Secretary General Jens Stoltenberg said NATO was reacting to Russian reinforcements in the region but did not want a new Cold War.
The defense committee recommends raising spending in the face of new political challenges.
U.S. tanks are part of a military buildup designed to deter Russian aggression in Eastern Europe.
Interceptions have remained high since a huge spike in 2014.
The Russian leader said he does not always understand the West in Stone's new documentary.
Moscow has been working on missiles to overwhelm defences.
The U.S. could simply provide military equipment and logistical support to its European allies.