https://sipri.org/sites/default/files/2017-09/yb17-summary-eng.pdf
https://ecipe.org/blog/power-to-ukraine-rebuilding-ukraines-electricity-system/?mc_cid=3147beb3bb&mc_eid=286ad5ef5f
https://snyder.substack.com/p/safe-terrain
https://www.eca.europa.eu/Lists/ECADocuments/SR21_08/SR_Frontex_EN.pdf