WASHINGTON, June 19 -- Law firms assisted companies in the following recently announced transactions: * * * Milbank LLP served as legal counsel to U.S. Steel in the finalization of its partnership and merger transaction with Nippon Steel Corporation. This historic partnership aims to create a world-leading steelmaker, with a commitment to maintaining U. S. Steel's name and headquarters in Pittsburgh and protecting over 100,000 jobs through substantial investments in US steelmaking. The Milbank more ST