"Ich bin ein Berliner" (I am a Berliner) is a famous statement that President Kennedy said in June 26, 1963 in the West of Berlin. He was strengthen the support of the United States for West Germany, 22 months after the Soviet-supported East Germany, to build up the Berlin Wall as a barrier to prevent movement between East and West.
The speech is considered one of Kennedy 's best, and a notable moment of the Cold War. That speech was very good for the West Berliners who lived in an exclave deep inside East Germany.
Today, in the world of freedom, the proudest boast is 'Ich bin ein Berliner! '... All free men, wherever they may live, are citizens of Berlin, and, therefore, as a free man, I take pride in the words 'Ich bin ein Berliner! '
Kennedy asked his interpreter Robert H Lochner to translate "I am a Berliner". So before he did the speech, he was practicing the German phrase “Ich bin ein Berliner!” But they also help him to say that phrase with proper pronunciation.
This message of defiance was tell specifically to the Soviets as it was at Berliners, and was a clear statement of U.S. policy in the wake of the construction of the Berlin Wall. So they could start constructing the wall; U.S was supporting that idea. Kennedy 's speech marked the first instance where the U.S. knew that East Berlin was part of the Soviet bloc along with the rest of East Germany.
During the speech, Kennedy used the German phrase twice, ending his speech on it. But after practicing the German accent, Kennedy did pronounce the sentence with his Boston accent, reading from his note "ish bin ein Bearleener," which he had written out in English phonetics.
I think this speech that JFK did, was very important, because he talked about freedom, and was defending every man of Berlin, saying that there wasn’t racism, that all free man, where ever they will always be Berliners, so he is saying that he is a free man so he is a Berliner.