The RS-24 Yars (Đ ĐĄ-24 ĐŻŃŃ â ŃакоŃĐ° ŃŃŃĐ°ŃогиŃĐľŃĐşĐ°Ń (strategic missile)-modification 24) also known as Topol-MR, NATO reporting name SS-29 or SS-27 Mod 2), is a Russian MIRV-equipped, thermonuclear armed intercontinental ballistic missile first tested on May 29, 2007, after a secret military R&D project.