Exclusive: Russian hiring of Syrians to fight in Libya accelerated in May - Reuters
Reuters
A Russian drive to recruit Syrians to fight in Libya for militia leader Khalifa Haftar accelerated in May when hundreds of mercenaries were signed up, five Syrian opposition sources and a regional source familiar with the matter said.
https://www.reuters.com/article/us-libya-security-syria-russia-exclusive-idUSKBN23E06H