The rebellious students wanted to seize the city telephone exchange , Peter and Paul Fortress , Smolny and arrest Arrest the Soviet government together with the Bolshevik leaders .

Engineer 's Fortress ) , the headquarters of the mutiny leaders .

By 11 a.m. of October 29 , the Red Guards and revolutionary soldiers had regained Recovering control over the telephone exchange and surrounded Surrounding the Engineer ’ s Fortress .

Most of the junkers fled Escaping , but those who remained would be disarmed Emptying by 5 p.m. and sent Sending to the Peter and Paul Fortress .

Following the Battle Hostile_encounter of Raszyn on April 19 , the Polish forces commanded Control by Prince Józef Poniatowski left Warsaw undefended and withdrew Escaping to several fortresses located nearby ( most notably to Modlin Fortress and Serock ) .

However , the following day the besiegers were assaulted Attack from the back by a Polish division-sized sortie from the Modlin Fortress under Gen. Michał Sokolnicki .

The , or `` Black Fortress '' , was a fortress of the `` Kanrei '' Shiba Takatsune located in Echizen Province ( present-day Nittazuka , Fukui , Fukui Prefecture ) in the Hokuriku region of Japan .