Russia says it will revive the OTR-23 Oka (NATO: SS-23) mobile theatre ballistic missile that was scrapped under the INF Treaty.
By Aleksander Dragnes from Oslo, Norway (SS-23) [CC BY 2.0], via Wikimedia Commons
Deputy Defense Minister Yuri Borisov said the missile will be upgraded to improve its range and accuracy. The old missile had a range of 400km but was nonetheless scrapped.