Presidents Joe Biden and Vladimir Putin held a two-hour virtual meeting Tuesday amid mounting tension over the military buildup at the Russia-Ukraine border. National security adviser Jake Sullivan spoke to reporters following the call.

Jake Sullivan: “He told President Putin directly that if Russia further invades Ukraine, the United States and our European allies would respond with strong economic measures. We would provide additional defensive materiel to the Ukrainians, above and beyond that which we are already providing.”

Russia blamed escalating tensions on Western powers and reiterated opposition to any plans for NATO to expand in Eastern Europe.