Über die massive Zunahme der Aktivitäten russischer Söldnerfirmen (PMCs) berichtet eine Studie des CSIS: „Russia has increased its use of PMCs as a tool of foreign policy, beginning around 2015. As CSIS data highlight, the number of countries where PMCs operate around the globe increased sevenfold between 2015 and 2021, from 4 countries in 2015 to 27 in 2021.” (jw)