<span style="color: #222222;">Former UN Chief Javier Perez de Cuellar, who served as United Nations Secretary General from 1981 to 1991, passed away yesterday in his native Peru. His son Francisco Perez de Cuellar confirmed the death of the centenarian Peruvian diplomat.<br />''<br />''Perez de Cuellar notably led the world body during the Iran-Iraq war and the civil war in El Salvador.<br />''<br />''The present UN head Antonio Guterres expressed gratitude for Perez de Cuellar's contributions and achievements as Secretary-General.</span><br />