Answer:
1) In january 1973, the United States and North Vietnam concluded the last peace treaty, ending open hostilities between the two nations. War between North and South Vietnam continued, however, until April 30, 1969.
2) Nixon visited China to gain more leverage over the relationship with the Soviet Union. The normalization of ties culminates in 1979, when the U.S. established full diplomatic relations with the PVR.
Explanation:
James Polk became president in 1845 with plans to expand American territory. His actions included the annexation of Texas and obtaining the Oregon Territory.
The answer should be A, and or D? i’m not to sure.