Aug. 10 — WASHINGTON (Reuters) - The United States should seek a new U.N. resolution on Iraq to help secure greater international support in reconstruction and peacekeeping efforts, a key Senate Republican said on Sunday. Senate Foreign Relations Committee Chairman Richard Lugar of Indiana said a U.N. resolution would also provide "greater legitimacy" to commercial contracts in Iraq. "I think we need to seek a resolution or more resolutions from the United Nations to give more legitimacy, more reason why other nations will come to the floor -- specifically India, perhaps Germany," he told reporters. France, Russia and Germany, who...