By Andrea Shalal BALTIMORE, Md. (Reuters) – U.S. and British officials kicked off two days of meetings on Monday to strengthen trade ties, underscoring the importance of transatlantic cooperation at a time when Western allies are ratcheting up pressure on Russia over its war in Ukraine and China for failing to condemn it. The talks in Baltimore mark a broad effort to take stock of the $260 billion bilateral trade relationship, while specific irritants will be set aside and dealt with separately. U.S. Trade Representative Katherine Tai said the two allies had resolved disputes over aircraft sub…