In contrast to Mr. Zarqawi, who increasingly looked outside Iraq for leadership help, Mr. Baghdadi has surrounded himself by a tight clique of former Baath Party military and intelligence officers from the Hussein regime who know how to fight. Analysts and Iraqi intelligence officers believe that after Mr. Baghdadi took over the organization he appointed a Hussein-era officer, a man known as Hajji Bakr, as his military commander, overseeing operations and a military council that included three other officers of the former regimes security forces.