Excluding the now quite small UK contingent in Cyprus, with UNCYPF, the UK has ten military personnel wearing a blue beret. Although the UK does pay a lot for peacekeeping by others.

The price in blood others paid:
The tragic loss of 456 UK service personnel in Afghanistan between 2001 and 2016 has quite rightly dominated the media in the UK but how many of us are aware that 1,733 UN peacekeepers have also died in the line of duty during the same period?
Link:http://defenceindepth.co/2016/03/02/...-back-in-blue/