The structure of the Jewish Combat Organization (Żydowska Organizacja Bojowa, ŻOB) during the Warsaw Ghetto Uprising.

The structure of the Jewish Combat Organization (Żydowska Organizacja Bojowa, ŻOB) during the Warsaw Ghetto Uprising was based on a collective command and a strict division of labor across different sectors of the ghetto.

Command Structure (The Komenda)
The organization was led by a central command unit composed of representatives from various Zionist and socialist political factions. 

Chief Commander: Mordechaj Anielewicz (Hashomer Hatzair).
Deputy Commander: Icchak Cukierman (Dror).

Deputy Commander,  Icchak Cukierman, was also responsible for liaison with the Polish Home Army (AK) and later also with Gwardia Ludowa (GL) on the "Aryan" side.

Other Functions in Jewish Combat Organization

Johanan Morgenstern (Poale Zion-Right) – Intelligence, Finance, and supplies.
Hersz Berliński (Poale Zion-Left) – Operations planning.
Michał Rojzenfeld (PPR/Communist) – Combat communications.

Headquarters

The main headquarters was located in the bunker at 18 Miła Street, where most of the command staff perished on May 8, 1943.

Operational Organization of the Jewish Combat Organization
The basic tactical unit was the fighting group (platoon), typically numbering 10–15 members originating from the same youth movement (such as Dror, Akiba, Poale Zion-Right, PPR, Hashomer Hatzair, or the Bund). So there were five-six "politically" divided groups based on 22 small combat units (platoons/cells responsible for three different combat sectors). 

Territorial Sectors, Territorial Commanders and Fighting Units

In April 1943, ŻOB consisted of approximately 500–600 fighters, organized into 22 combat groups divided across three main areas: 

• Central Ghetto: Under the direct command of Mordechai Anielewicz, this area contained the largest concentration of units.
• Productive District (Toebbens and Schultz shops, North of the Leszno Street): Commanded by Eliezer Geller.
• Brushmakers' Shop District (in the eastern corner of the ghetto, West of the ghetto-wall at Bonifraterska Street): Commanded by Marek Edelman.

Different Territorial Sectors had various numbers of combat groups. Dror had 5 combat groups, Hashomer Hatzair 4, PPR-GL 4, and Bund, where Edelman was, a "group commander" had 4 groups. His combat groups in the area of the Brushmakers' Shop District (Szop Szczotkarzy), the smallest group, were responsible for the smallest fighting sector that he and his groups had to give up. Thereafter, he moved to the hiding place of the Command in the bunker at 18 Miła Street, which was in the middle of the Central Ghetto fighting district.

ŻOB participation in the 1944 Warsaw Uprising 1944

The Jewish Combat Organization (ŻOB) participated in the 1944 Warsaw Uprising 1944. The Jewish combat platoon was commanded by former ŻOB Deputy Commander, Icchak "Antek" Cukierman. The combat group was named after Mordechai Anielewicz and was formed within the People's Army - AL (Armia Ludowa).

Observe
When most of the Jews left Poland after "March 1968", Edelman stayed and became the first self-proclaimed Chief Commander of the Warsaw Ghetto Uprising - a legend that lives today. However, as one can see from the Command Structure, he was never nominated during wartime, and his self-nomination is likely to be related to his activities in Polish Organizations like KOR and Solidarnosc.