After M'ba's accession to power, the press was suppressed, political demonstrations banned, freedom of expression curtailed, other political parties gradually excluded from power, and the Constitution changed along French lines to vest power in the Presidency, a post that M'ba assumed himself. However, when M'ba dissolved the National Assembly in January 1964 to institute one-party rule, an army coup sought to oust him from power and restore parliamentary democracy. French paratroopers flew in within 24 hours to restore M'ba to power.