This is the third annual Cluster Munition Monitor report. It is the sister publication to the Landmine Monitor report, which has been issued annually since 1999.

Cluster Munition Monitor reviews every country in the world with respect to cluster munition ban policy as well as cluster munition use, production, trade, and stockpiling. It also contains information on cluster munition contamination and casualties, as well as clearance and victim assistance. Its principal frame of reference is the Convention on Cluster Munitions, although other relevant international law is reviewed, including the Convention on Conventional Weapons.

The report focuses on calendar year 2011, with information included up to July 2012 where possible.