Battle-tested Ukrainian startup that advertises a ‘Killbox’ drone recruited Prince as non-executive chair Battle-tested Ukrainian startup that advertises a ‘Killbox’ drone recruited Prince as non-executive chair After multiple sources previously told the Guardian that Erik Prince – Maga ally and founder of the now defunct mercenary company Blackwater – was looking to work with Ukraine ’s invaluable drone sector, recent Securities and Exchange Commission (SEC) documents confirm he now is .