Three Presidents - Two Democrats & One Republican

Bush - 2nd inaugural address - "The survival of liberty in our land increasingly depends on the success of liberty in other lands.  The best hope for peace in our world is the expansion of freedom in all the world."

Kennedy's inaugural address - "Let every nation know, whether it wishes us well or ill, that we shall pay any price, bear any burden, meet any hardship, support any friend, oppose any foe, in order to assure the survival and the success of liberty."

Truman Doctrine, March 12, 1947 - Includes these words - "The free peoples of the world look to us for support in maintaining their freedoms.  If we falter in our leadership, we may endanger the peace of the world -- and we shall surely endanger the welfare of our own nation."