Militant Forces was an organized caucus

Caucus

A caucus is a meeting of supporters or members of a political party or movement, especially in the United States and Canada. As the use of the term has been expanded the exact definition has come to vary among political cultures.-Origin of the term:...

 in the French Socialist Party

Socialist Party (France)

The Socialist Party is a social-democratic political party in France and the largest party of the French centre-left. It is one of the two major contemporary political parties in France, along with the center-right Union for a Popular Movement...

.

The faction was founded in 2003 by Marc Dolez

Marc Dolez

Marc Dolez is a member of the National Assembly of France. He represents the Nord department, and is a member of the Gauche démocrate et républicaine. A former Socialist, he was a founding member, with PS Senator Jean-Luc Mélenchon, of the Left Party.-References:...

, whose motion obtained 4.38% at the Dijon Congress

Dijon Congress

The Dijon Congress was the twentieth national congress of the French Socialist Party . It took place from May 16 to 18, 2003....

 the same year. Dolez was close the New World

New World (France)

New World was an organized caucus in the French Socialist Party.New World was founded in 2002 following the implosion of the Socialist Left. Socialist Left members, including Jean-Luc Mélenchon were joined by followers of Henri Emmanuelli and his Democracy and Equality movement...

 caucus. In 2005, members of the faction based around the Démocratie & Socialisme magazine joined the faction but left in 2007.

Dolez supported the left-wing motion led by Benoît Hamon

Benoît Hamon

Benoît Hamon is a French politician, member of the Socialist Party , part of the Party of European Socialists. He was Member of the European Parliament for the East of France from 2004 to 2009. He was national secretary for Europe in the French socialist party. At present, he is spokesman...

 at the Reims Congress

Reims Congress

The Reims Congress was the twenty-second national congress of the French Socialist Party , taking place from 14 to 16 November 2008 in the city of Reims in the Marne....

 in 2008, but Dolez, along with Jean-Luc Mélenchon

Jean-Luc Mélenchon

Jean-Luc Mélenchon is a French politician who served in the government of France as Minister of Vocational Education from 2000 to 2002. He was also a member of the Senate of France, representing the Essonne department...

 (Trait d'Union

Trait d'Union

Trait d'Union was an organized caucus in the French Socialist Party.Trait d'Union was founded in August 2005 by supporters of Jean-Luc Mélenchon within the New World caucus...

) left the PS to found the Left Party

Left Party (France)

The Left Party is a French democratic socialist political party. It seeks to emulate the German political party Die Linke led by Gesine Lötzsch and Klaus Ernst.- History :...

(PG).