Russia has been using cluster munitions to attack Ukraine since the start of the invasion. Ukraine are arguing that they should therefore also be able to use these on their own territory in defensive operations. Around 110 countries, including the UK, have agreed to ban these weapons, but the U.S.A., Russia and Ukraine are not on the list. Cluster bombs are highly controversial, as some of the bomblets do not detonate immediately, and explode later, often causing civilian casualties. I personally have some difficulty with the concept that there's a right way and a wrong way to kill someone with a weapon of war. The same rather strange approach applies to plastic, hard to detect anti-personnel mines, which 140 countries have also agreed to ban. I'd be much more impressed if there was as much effective support for a ban on all nuclear weapons, which Putin is constantly referring to as he is gradually backed into a corner. Although there is a UN treaty to ban them, and many countries have signed to date, not one of them was actually armed with nuclear weapons. All war is an obscenity, and if we start selectively suggesting that certain weapons are inhumane, we risk implying that those lethal weapons we choose not to ban are somehow acceptable. Strange logic, and I'm not comfortable with it.