fighting communist subversion ref name truman president harry truman 's address joint session congress march ref truman pledged support free peoples resisting attempted subjugation armed minorities outside pressures ref name truman pledge became known truman doctrine portraying issue mighty clash totalitarian regimes free peoples speech marks adoption containment official us policy congress appropriated money truman 's motives occasion subject considerable scholarship several schools interpretation orthodox explanation herbert feis series aggressive
Applied science Military sciences Grand strategy Containment