Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military serviceman Igor Ovcharruck holds a defused cluster bomb from an MSLR missile, among a display of pieces of rockets used by Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays circuit boards from a Kalibr missile used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays parts of grad rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

A view of a detail of a Smerch missile used by the Russian army, is displayed by the Ukrainian military, a Ukrainian munitions expert stating the missile did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays part of a Kalibr missile used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays part of a Kalibr missile used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays part of a Kalibr missile used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

A document from the war crimes department of the Ukrainian military is taped to the side of part of a rocket used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of Smerch rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne 

Ukrainian military displays pieces of rockets used by the Russian army, that a Ukrainian munitions expert said did not explode on impact, in the region of Kharkiv, Ukraine, October 21, 2022. REUTERS/Clodagh Kilcoyne