MOSCOW (Reuters) - President Vladimir Putin said on Friday that Russia would keep developing its arsenal of nuclear weapons, the world's largest, as a deterrent and would supply the army fighting in Ukraine with the latest weaponry and drones.

Putin was speaking in the Kremlin at a ceremony attended by graduates of military, police and intelligence service academies.

"We plan to further develop the nuclear triad as a guarantee of strategic deterrence and to preserve the balance of power in the world," said Putin.

Russia's nuclear triad is a reference to its land, sea and air-launched nuclear missiles.

(Reporting by Reuters; Editing by Andrew Osborn)