"Saudi Arabia's coalition in Yemen is using internationally banned cluster munition explosives supplied by the United States, despite evidence of civilian casualties and the fact that the weapons fall short of US weaponry standards, according to Human Rights Watch. VICE News,  February 14, 2016" 
( https://news.vice.com/article/saudi-coalition-is-dropping-us-supplied-cluster-bombs-on-civilians-in-yemen-rights-group-says )