The British memo had the effect of convincing Truman that the time for diplomatic protests and toothless entreaties had ended. On March 12, he gave an address to Congress in which he urged the authorization of $400 million in emergency aid for the embattled regimes in Greece and Turkey. In what would soon become known as the Truman Doctrine, he also outlined a containment policy against communist expansion, a vow that the United States would come to the defense of imperiled democracies around the world.
