Constitutionalist movement of Gilan

The Jangal (Jungle) Movement, in Gilan, was a rebellion against the monarchist rule of the Qajar central government of Iran. It lasted from 1915 to 1921.

In 1915, Mirzâ Kuçak Xân, a experienced activist in the Constitutional Revolution, launched the Jangal movement, which was religiously Islamic, in the forests of Gilan, demanding autonomous status for the province, an end to central government corruption, an end to foreign interference in affairs of local peoples, and land reform. Basically, even though the movement was not "separatist", "bourgeois nationalist", or communist, its main ideas were rooted in ridding the country of government corruption, "foreign imperial domination," and opposition to the country's existing monarchy. With such goals, it is no surprise that the movement enjoyed strong support of the peasantry, working class, and poor population within Iran. Even so, Hooshang Amirahmadi describes the movement's leaders as "merchants and landlords" and Mirza as part of the "democratic wing" of the Iranian bourgeoisie.

In years that followed, the movement's guerrillas, Jangalis, fought against foreign invaders. While they were described as "small landowners in Gilan" that advocated armed insurgency, they were strong enough to resist the advances of the Russian Empire, leading the British to become the major military presence in the region instead. After the Russian Revolution in 1917, Marxists within Iran became more organized and began collaborating with the Jangal movement, with many of these new revolutionaries directly influenced by the Bolsheviks. Later, these Marxists would end up forming the communist Tudeh Party. Even so, there were undoubtedly differences since Mirza supported land reforms but not land redistribution.

...
Wikipedia