"Black Reign, Part 1 of 6" continues in Hawkman (Vol 4) #23.
*Black Adam has gathered his allies and the invasion/liberation of his nation of Kahndaq has begun. Northwind, Nemesis, Eclipso, Brainwave, Atom Smasher and Black Adam storm through the nation's military, releasing child slaves as they go. When they reach the nation's capital, Shiruta, Black Adam orders Atom Smasher to kill Asim Muhunnad, the nation's evil leader. He struggles with this, but complies, and the nation is now in the hands of Black Adam, its ancient leader. *Source: DCGuide.com