The Armenian resistance is a name given to the military and political activities of the Armenians under the Armenian political parties of Henchak, Armenakan, Dashnaktsutiun against the Ottoman Empire during World War I, considered a struggle for freedom and resistance to the Armenian Genocide by the Armenian combatants, but high treason by the Ottoman Empire. These Armenian national organizations established Armenian Fedayee () generally referred to as Armenian partisan guerrilla detachments and the Russian Empire formed Armenian volunteer units, which recruited Ottoman Armenians from behind the Ottoman lines, to help the Russian Caucasus Army against the Ottoman Empire. During this initial period Siege of Van on April 20, 1915, and consequently establishment of Administration for Western Armenia were significant events, that according to minister of interior Mehmed Talat Pasha this rise of Armenian national liberation movement and the Fifth column activity as stated in his order on April 24, 1915 ended with arrests in Red Sunday and later Ottoman parliament passed Tehcir Law on 29 May 1915, which enabled the massive deportation of the Armenian people from the region. The deportations and massacres, resulting in the deaths of about 1,500,000 Armenians., is referred to as the Armenian Genocide by most scholars of the period; official Turkish sources often refer to it as the ″Armenian insurgency”, and dispute the number of victims.