Nikita Khrushchev faced domestic challenges as the Soviet leader from 1953-1964. He criticized Stalin in a 1956 speech, angering Stalin supporters and encouraging anti-Soviet revolts. This made Khrushchev unpopular and worried about challenges to his leadership. His agricultural and religious policies also failed and were unpopular. Placing missiles in Cuba may have been an attempt to strengthen his position by appearing stronger against the US and distracting from domestic issues, though confronting the US carried great risks if unsuccessful.