In the last issue of Silent War, the marines show up at Attilan and are beaten, a feint to allow one marine to explode within the confines of the city, destroying the lunar Attilan.
In the last issue of Silent War, the Marines again assail Attilan and are repulsed. In reality, this battle was a feint designed to allow one Marine to explode within the confines of the city, destroying lunar Attilan.