The dollar rose to a two-week peak on Tuesday as tensions between Russia and the West over Ukraine drew investors to safe-haven currencies while awaiting the outcome of this week’s U.S. Federal Reserve policy meeting. Russia said it was watching with great concern after the United States put 8,500 troops on alert to deploy to Europe in the event of an escalation in the Ukraine crisis. “Much greater exposure of European economies to the crisis does not make the euro a particularly attractive vehicle to ride out the current storm,” ING analysts said. The euro was down 0.4 percent at $1.1281 by 1121 GMT for its weakest level since Jan. 5. The dollar index rose 0.3 percent to a two-week high of 96.19. The Fed could firm up plans to raise interest rates and shrink its holdings of U.S. Treasury bonds and mortgage-backed securities, which have swollen its balance sheet …