President Vladimir Putin on Friday replaced Russia's army chief of staff with a veteran commander from the second Chechnya war, in a shake-up of the military after the sacking of the defense minister.

Army chief of staff Nikolai Makarov has been replaced by General Valery Gerasimov, a commander from the second Chechnya war, Putin announced days after the sacking of defense minister Anatoly Serdyukov in a graft scandal.

"You are an experienced person," Putin told Gerasimov in a meeting at the Kremlin that also included the new Defense Minister Sergei Shoigu.

"I believe the minister has picked the right candidate and I hope that you will work to the best of your abilities and efficiently."

The chief of staff is one of three people in Russia with exclusive access to nuclear launch codes. The other two are the president and the defense minister.

Shoigu described Gerasimov - who served as first deputy chief of staff between 2010 and 2012 - as a "military man from head to toe".

He added that Gerasimov enjoyed respect in the army and had "colossal experience working both at the general staff" as well as "in the field".

A career officer, 57-year-old Gerasimov also served as the commander of the 58th army in the North Caucasus military district in the late 90s and commanded Russian troops in the second war against separatists in Chechnya.

Analysts said the replacement of the army chief of staff was widely expected in the wake of the dramatic departure earlier this week of Serdyukov.

"His appointment is in line with a classic tradition - a new boss appoints new people so that they feel duty-bound to him," said military analyst Alexander Golts.

On Tuesday, Putin fired defense minister Serdyukov over a corruption scandal.

Agence France-Presse