UPDATES: 3/19/14, 6:05 p.m. EDT. Eric Posner, a professor at the University of Chicago Law School, looks at Vladimir Putin’s address to the Russian Duma from the perspective of an international lawyer. 3/21/14, 9:35 a.m. EDT. The U.S. and the European Union have announced news rounds of Russian sanctions, causing shares in Russian companies to drop sharply and threatening Wall Street’s ties to Putin’s regime. In a piece this week for Foreign Affairs, national security expert and Boies, Schiller & Flexner partner Lee Wolosky writes that the Obama administration’s sanctions won’t work.

President Vladimir Putin announced Tuesday that he would accept Crimea’s bid to join the Russian Federation, potentially opening the door to further sanctions by the United States and the European Union against his country and wealthy business elites with close ties to the Kremlin. Caught in the middle of the deteriorating situation between East and West are several top international and Am Law 100 firms, whose offices in Moscow could be adversely affected by a more permanent schism as hardliners on both sides angle for confrontation.