[4] On 31 July 1914 he was the only member of the National Confederal Committee of the CGT to propose to implement the decision made by its congress and launch an insurrection against the war.

[2] The International Action Committee (CAI: Comité d'action internationale) was founded in December 1915 by French syndicalists who supported the pacifist declarations of the Zimmerwald Conference.

The socialists Fernand Loriot, Charles Rappoport, Louise Saumoneau and François Mayoux took control of the committee.

Merrheim had disagreed with the strikes, but defended Péricat and told the premier Georges Clemenceau and the Left deputies that they must listen to the proletariat and understand their grievances if France was to avoid the fate of Russia in being forced into peace on disadvantageous terms.

The civil service and the state itself were to be abolished, replaced by a system of corporations, or soviets, administering themselves with a confederation.

[10] On 1 September 1919 Leon Trotsky chose to ignore Péricat's dispute with the mainstream French Communists and wrote a letter to Pierre Monatte, Loriot, Péricat and Alfred Rosmer in which he talked of his "bonds of friendship" with them all, and said the revolution in France would be in strong hands.

In October 1919 Lenin wrote in an article that Pericat's L'Internationale and Georges Anquetil's Titre Censuré were the two Communist newspapers in Paris.

[14] They led a committee of 26 minority unions that was formed in October 1919, later named the Comité Syndicaliste Révolutionnaire (CST).

In 1920 the anarchist militants in these two groups became disillusioned with the Bolsheviks, and in 1921 and 1922 became extremely hostile opponents of the Communist Party.