5a What has Mr Khrushchev boasted of?
5b Does the writer of this note believe Khrushchev?
5c Would you say the writer of the note is absolutely sure about his conclusions on Khrushchev's claim?
5d What does this source tell historians about the relations between the superpowers in 1964. Think about what you can infer about
Fill out the relevant line of your Case Study Worksheet.
Look at your answers to the questions on source 5.