By Humeyra Pamuk and David Brunnstrom WASHINGTON (Reuters) – U.S. Secretary of State Antony Blinken will aim with a trip to the Pacific this week to remind the world that Washington’s strategic long-term focus remains with the Asia-Pacific region despite an escalating crisis with Russia over Ukraine. Blinken is due to depart on Monday for Australia, Fiji and Hawaii for meetings with key allies and to reaffirm a commitment to push back against what the United States calls China’s growing economic and military “coercion.” Highlights of the week will be a meeting of the informal grouping of Austr…