How interested are Christians supposed to be in the spirit world?

How interested are Christians supposed to be in the spirit

world?: How interested are Christians supposed to be in the spirit world? Should Christians care about the spirit world?

Vietnam

July 26, 1950 - United States military involvement in Vietnam begins as President Harry Truman authorizes $15 million in military aid to the French. American military advisors will accompany the flow of U.S. tanks, planes, artillery, and other supplies to Vietnam.