By Caroline Valetkevitch NEW YORK (Reuters) – Wall Street’s main indexes fell on Tuesday, with the S&P 500 confirming a correction, as the Ukraine-Russia crisis kept investors on edge after Russian President Vladimir Putin recognized two breakaway regions in the country and ordered troops to the area. The S&P 500 ended down more than 10% from its Jan. 3 closing record high. A correction is confirmed when an index closes 10% or more below its record closing level. Indexes pared losses and ended off their lows of the session after U.S. President Joe Biden announced the first wave of sanctions ag…