"The Cold War in the 1950s": HTML5 Crossword

Across

5. Organisation to rival NATO is formed in 1955 (6,4)
6. USA tests this bomb in 1952 (8)
8. Crisis in Egypt that distracted the attention of the US, Britain and France away from the uprising in Hungary (4)
10. End of 25 years in power for this person in 1953 (6)
11. Idea that if one country falls to Communism then so will others (6,6)
12. Speech where Khrushchev attacked what Stalin had done (6)
13. Abbreviation for an Intercontinental Ballistic Missile (4)
16. Idea that having nuclear weapons would stop the other side from attacking you (9,0)

Down

1. Organisation set up in 1954 in South East Asia to protect against a Communist threat (5)
2. Leader who hoped that Khrushchev would allow more reforms in Hungary (4)
3. Stalinist leader of Hungary replaced in 1956 (6)
4. Hungary was very much in the Soviet ______ __ _________ (6,2,9)
7. Capital of Hungary (8)
9. USSR finally gets this in 1949 (4)
14. Country 'falls' to Communism in Asia in 1949 (5)
15. Country divided along the 38th parallel (5)