"The General Staff with the approval of the defense minister has made the final decision that the new Yelnya Motorized Rifle Division along with the Tamanskaya Motorized Rifle and Kantemirovskaya Tank Division will be part of the 1st Guards Tank Army," the source said, TASS wrote.

"The formation of the division in the Smolensk region began much later than the formation of similar forces in the Voronezh and Rostov regions, so the completion of its recruitment and construction of infrastructure facilities is planned not for December this year, but for the end of the first half of next year," he said.

Read alsoRussia seen putting new nuclear-capable missiles along NATO border by 2019 – ReutersThe source said that the number of personnel of the division with the headquarters in Yelnya will be around 10,000 men. According to him, the new formation will comprise three motorized rifle regiments and one armored regiment, a self-propelled artillery regiment and an anti-aircraft missile regiment, as well as support units.

Read alsoRussia deploys more troops toward Ukrainian border as standoff with NATO deepensThe division in the Smolensk region is one of three new bodies of troops the formation of which was previously announced by Defense Minister Sergei Shoigu. This spring, chief of the Main Operations Directorate of the Russian Armed Forces' General Staff Sergei Rudskoy said that that the military had not yet decided to which force the Yelnya division will be assigned.