If by Christian Church you mean Catholic Church(as their was and is the Eastern Orthodox, which historically didn't get along well with Catholics) then the Reformation.
The Labor Management Relations Act of 1947 29 U.S.C. § 141-197, better known as the Taft–Hartley Act, (80 H.R. 3020, Pub.L. 80–101, 61 Stat. 136, enacted June 23, 1947) is a United States federal law that restricts the activities and power of labor unions
They wanted to take the Mexican territory because...1) South wanted to expand slavery for its economical benefits 2) the gold rush in San Francisco boosted western migration to California 3) mostly northerners wanted to connect the whole US by railroad also for economical benefits
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Explanation:
Most of the American soldiers in the Vietnam War abused morphine for the pain of their injuries and they used other drugs to help them forget about their trauma. They used drugs as a coping mechanism