Why might nations want to retain or develop an arsenal of nuclear, biological, and chemical weapons?

When early settlers began to move north, they moved north of the 49th parallel. puget sound. seattle. the columbia river.

The formation of business monopolies in the late 1800s was made possible by the (1) effects of laissez-faire policies (2) passage of federal antitrust laws (3) elimination of the free-enterprise system (4) adoption of socialist economic practices

What event from world war l does the image most likely depict