After his election in 1980, which action did president reagan take in regard to the ussr?

he formed an alliance with cuba.
he began peace talks with it.
he increased defense spending.
he attacked it

He increased defense spending.

Explanation:

The Reagan Doctrine was a doctrine of foreign policy created and implemented by the United States under the presidency of Ronald Reagan to combat the global influence exerted by the Soviet Union during the final years of the Cold War. This doctrine was the cornerstone of US foreign policy. from the early years of the 1980s until the end of the Cold War in 1991.

During this period and as a consequence of this diplomatic idea, the United States it provided both open and clandestine aid to anti-communist guerrillas and insurgent groups in an effort to overthrow governments that supported the Soviet Union in Africa, Asia and Latin America, especially in Central America, which is made up of Guatemala, El Salvador, Belize, Nicaragua , Honduras, Costa Rica and Panama. The doctrine was designed to diminish the Soviet influence in these regions but also to promote the establishment of political and economic systems oriented to capitalism, understood from the liberal democracy, since in some cases they had been for a long time governed by socialist governments.

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.