Which statements accurately describe events during the Cold War? Choose all answers that are correct.

The German nation and the city of Berlin were finally reunited in 1989.

The United States and its western allies formed the North Atlantic Treaty Organization (NATO).

The collapse of the Soviet Union allowed the nations of Eastern Europe to form democratic governments.

The United States built a series of defensive fortifications in the 1950s called the Iron Curtain.

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the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.