MOSCOW (Reuters) -Russian President Vladimir Putin said on Wednesday that special attention in the country's new arms programme should be paid to the nuclear triad - land-based, sea-based and aircraft-launched weapons. Putin's remarks, broadcast on state television, were made at a meeting of senior officials devoted to the country's arms industry. "Undoubtedly, special attention should be paid to the nuclear triad, which has been and will remain the guarantee of Russia's sovereignty and plays a key role in upholding the balance of forces in the world," Putin said.