I've searched through a few of the countries that didn't sign the convention and they either manufacture or have bought large stocks of cluster bombs (India, Argentina, US, and Brazil). The trend seems self evident.

I still don't get why we are trying to justify unloading our backlog of dangerous cluster bombs onto Ukraine soil. Blood is on the hands of the lobbyists that wanted to clear out the warehouses full of cluster bombs. We can make more munitions that we have been sending, which will be less of a hazard to Ukrainian farmers.