An international human rights group says that global military powers are resisting an absolute ban on cluster munitions.

In a report to the U.N.'s European headquarters, Human Rights Watch said that the U.S., China, Russia, India, Pakistan, Israel and South Korea seek to weaken the Convention on Cluster Munitions.

The report says that while it's been two years since the convention was adopted, major military powers continue efforts to resist the treaty.

Cluster munitions are large weapons that disperse dozens or hundreds of smaller submunitions.

The ban was adopted in 2008 in Oslo, Norway, and took effect this past August.