As Trump raises tariffs on Chinese goods (again), a big picture of world trade since mid-19th-century is very useful. After a historical level of a 'globalisation' wave/openess, the U.S. sees its hegemony threatened and its power in relative decline vis-a-vis the rising of new powers like China. Thus it wants reassert itself. That makes the possiblities of conflicts in the coming decade higher.

World trade and capitalism