The U.S. on Tuesday warned of "serious consequences" if Russia escalates the conflict in Ukraine, sending a clear message to Russian President Vladimir Putin as he continues to mobilize troops on the border of his neighboring country.
Secretary of State Antony Blinken met with NATO officials in Riga, Latvia, where they discussed the Russian troop buildup at the northern and eastern Ukrainian border, which many fear could spark a conflict in a region already battered by war since 2014, when Russia annexed Ukraine's Crimean Peninsula.
