Cluster bombs in Ukraine, what they are and why a convention prohibits their use in warfare

Currently, 164 countries in the world are signatories to the 2008 treaty, the Convention on Cluster Munitions, which prohibits the use, production, transfer and stockpiling of weapons. There are 36 – including the USA, Ukraine, Russia, China, Israel, India, Pakistan, Saudi Arabia and Brazil – the UN member countries that have not adhered to the convention