** FILE ** Hungarian rebels wave their red, white and green national flag from a tank captured in the main square of Budapest, Hungary, in this 1956 file photo. The uprising began on Oct. 23, 1956 with demonstrations against the Stalinist regime in Budapest and was crushed eleven days later by Soviet tanks amid bitter fighting. Some 2,500 people were killed and a further 200,000 forced into exile. (AP Photo/File)