The socialists at the Petrograd Soviet feared that officers were the most likely counter revolutionary elements and the intention of the Order was to limit their power.
These orders rendered the officers powerless at the Russian front lines of World War I, which led to confusion, disastrous military discipline, and desertions.
[4] During World War I, on 22 February 1917 (Julian Calendar) Tsar Nikolai II decided to leave Petrograd and travel to the front.
As their meetings tended to be a blur of oration, the Socialist intellectuals in the Soviet formed an executive committee of their own, the Ispolkom, initially the provisional one, and later the permanent one.
But the new Russian state became volatile as the Provisional Government, the Ispolkom as well as Kerensky himself, wished to continue the war.
This is (an incomplete) list of political parties and movements who supported the February Revolution: In May (1917), after having been expanded, the Ispolkom had 72 members.
During some months in 1918, after the complete breakdown in the Bolshevik-Menshevik negotiations, two members of the Left Socialist Revolutionaries joined Lenin, Trotsky and Stalin in a "Inner Cabinet" Government.