WARSAW Poland's support of the U.S.-led coalition forces in Iraq is hindering the modernization of its armed forces as costs continue to increase for its 2,500 troops and their equipment in Iraq, according to senior defense officials. . Janusz Zemke, Poland's deputy defense minister and state secretary for defense, said in an interview that Poland had sent some of its best soldiers and equipment to Iraq since taking over the command of a multinational force in the central zone in September 2003. All the troops deployed are professional, he said. . "We simply will not be able to squeeze more...