By Anis Chowdhury and Jomo Kwame SundaramSYDNEY and KUALA LUMPUR, May 31 2022 (IPS) US and allied economic sanctions against Russia for its illegal invasion of Ukraine have not achieved their declared objectives. Instead, they are worsening economic stagnation and inflation worldwide. Worse, they are exacerbating hunger, especially in Africa. Sanctions cut both ways Unless