Khrushchev took a tough approach and renewed the Berlin Ultimatum of 1958
Kennedy was concerned by this but was determined not to look weak and so refused to make any concessions.
Kennedy increased spending on armed forces in America by over $2 billion to protect the USA if war were to break out, it seemed as though the USA were prepared to fight over Berlin
No final decision was made about Berlin's ownership
Relationship between Khrushchev and Kennedy was very strained