Complex sentence: On July 10,1940, He voted against Marshal Philippe Pétain gaining full powers in Vichy France, and during the Occupation, he refused to compromise with Vichy, but also to actively engage in the Resistance.
Split into simpler sentences: On July 10,1940, he voted against Marshal Philippe Pétain, gaining full powers in Vichy France. During the Occupation, he refused to compromise with Vichy but also to actively engage in the Resistance.