The United Nations banned all non-essential Sri Lankan troops from serving with U.N. Peacekeeping operations. This happened in response to Lt. Gen. Shavendra Silva, who had previously been accused of war crimes, being appointed as the chief of the Sri Lankan army. Although this decision was directly correlated with Silva being appointed, in the past the Sri Lankan troops have not done a great job of being UN Peacekeepers, with allegations of past sexual assaults being brought up.

As it says in the article, I think it is good that the UN is not allowing these war crimes to go unnoticed. However, they mention a lack of vetting from Sri Lankan troops as US Peacekeepers, which led to the sexual assaults happening. If this is the case then why doesn’t the US themselves vet which troops are able to be UN Peacekeepers, instead of leaving it up the countries?

https://www.newsweek.com/united-nations-bans-sri-lankan-troops-over-general-accused-war-crimes-1461639