> The transition from the Fourth to the Fifth happened in 1958 without much violence.
Quoting from the article:
Things came to a head in 1958 as France struggled to decolonize. There was strong opposition within France to Algerian independence and part of the army openly rebelled. Important generals threatened a coup unless de Gaulle was returned to power. They sent paratroopers to capture Corsica in case anyone missed their point.