Video: 'World War I: Nivelle Offensive 4/4' (May 15, 1917, at 1:44)

(Tuesday, May 15, 1917; during World War I) — Less than one month after launching the Nivelle Offensive, the disappointment of which triggered a series of significant mutinies on the Western Front, French General Robert Nivelle was replaced today as Commander-in-Chief of the French Army by Philippe Pétain.