Answer: The repetition of this phrase strengthens Kennedy's message that West Germany has support of the United States, and pleases the crowd.
Step-by-step explanation:
"Ich bin ein Berliner" is a speech delivered on June 26, 1963, in West Berlin, by John F. Kennedy.
In the speech, Kennedy addresses the issue of the United States support for West Germany, after East Germany, under Soviet occupation, erected the Berlin Wall so as to stop people from emigrating to the West. The famous line from this speech, "Lasst sie nach Berlin kommen" ("Let them come to Berlin"), was spoken in German and repeated five times. This repetition of the same words at the end of successive phrases is referred to as 'epistrophe'. By repeating one-syllable words, Mr. Kennedy expresses his viewpoint and makes his words more powerful, which also pleases the crowd.