Final answer:
President Reagan shifted U.S. policy from containing communism to rolling back communism.
Step-by-step explanation:
President Reagan shifted U.S. foreign policy regarding communism by shifting from a policy of containing communism to a policy of rolling back communism. This shift was known as the Reagan Doctrine and aimed to actively confront and undermine communist regimes around the world. By providing support to anti-communist groups and organizations, Reagan sought to weaken and ultimately overthrow communist governments.
Learn more about U.S. foreign policy towards communism