The Redirection of US Foreign Strategy against the Background of Globalization

American foreign strategy has had strong continuity since World War Ⅱ despite differences among successive presidents.Donald Trump's 2016 presidential campaign revealed ideas and goals for US strategy and strategy adjustment that differ significantly from those of predecessors.The decline in relative gains and rise in cost for US involvement in globalization are reasons for Trump to redirect US foreign strategy.The relative decrease of both US trade and foreign direct investment in the US,amid security threats and the identity crisis of the American people,has tremendously increased the pricetag for US involvement in globalization.