Overall, UK and US maintained cooperative relations during early 20th century. However, affected by struggle for hegemony, the two powers clashed severely over lots of issues such as the shaping of world order, thalassocracy division, wartime strategy making, colony and sphere of influence control as well as commercial competition, etc. Nevertheless, because of the grand disparity in strength between the two countries, the change of international system, the impact of the war, and America's gradual and restrained way of rise, the UK gradually retreated. Fin...