A woman weaves camouflage nets for the Ukrainian army, in one of the buildings of the Lviv Polytechnic National University, amid Russia's invasion of Ukraine, in Lviv, Ukraine, March 22, 2022. REUTERS/Pavlo Palamarchuk 

A volunteer weaves camouflage nets for Ukrainian army, as Russia's invasion of Ukraine continues, in Lviv, Ukraine March 3, 2022. REUTERS/Pavlo Palamarchuk 

A volunteer welds an anti-vehicle obstacle during Ukraine-Russia conflict in Lviv, Ukraine March 5, 2022. REUTERS/Pavlo Palamarchuk 

A local resident makes anti-tank obstacles to defend his and others cities, as Russia's invasion of Ukraine continues, in Lviv, Ukraine March 2, 2022. REUTERS/Pavlo Palamarchuk 

People weave camouflage nets for the Ukrainian army, in one of the buildings of the Lviv Polytechnic National University, amid Russia's invasion of Ukraine, in Lviv, Ukraine, March 22, 2022. REUTERS/Pavlo Palamarchuk 

People weave camouflage nets for the Ukrainian army, in one of the buildings of the Lviv Polytechnic National University, amid Russia's invasion of Ukraine, in Lviv, Ukraine, March 22, 2022. REUTERS/Pavlo Palamarchuk 

A volunteer knits camouflage nets for Ukraine's Armed Forces, at a church, as Russia's invasion of Ukraine continues, in Ivano-Frankivsk, Ukraine March 19, 2022. REUTERS/Yuriy Rylchuk TPX IMAGES OF THE DAY 

Viktor, 32, carries sandbags, filled with sand from Sobachyy beach, to bolster the city's defences, as Russia's invasion of Ukraine continues in Odessa, Ukraine, March 14, 2022. REUTERS/Nacho Doce REFILE-CORRECTING NAME 

Parishioners and volunteers cut pieces of cloth to knit camouflage nets for Ukraine's Armed Forces at a church, as Russia's invasion of Ukraine continues, in Ivano-Frankivsk, Ukraine March 19, 2022. REUTERS/Yuriy Rylchuk 

Women work on bulletproof vests for Ukrainian army servicemen, amid Russia's invasion of Ukraine, in Odessa, Ukraine March 17, 2022. REUTERS/Igor Tkachenko 

Locals carry sandbags, filled with sand from Sobachyy beach, to bolster the city's defences, as Russia's invasion of Ukraine continues in Odessa, Ukraine, March 14, 2022. REUTERS/Nacho Doce 

Parishioners and volunteers knit camouflage nets for Ukraine's Armed Forces at a church, as Russia's invasion of Ukraine continues, in Ivano-Frankivsk, Ukraine March 19, 2022. REUTERS/Yuriy Rylchuk 

Workers from a local construction company weld anti-tanks obstacles to be place on road around Kyiv as Russia's invasion of Ukraine continues, in Kyiv, Ukraine March 3, 2022. REUTERS/Carlos Barria 

Volunteers prepare food for Ukrainian servicemen amid Russia's invasion of Ukraine, in Odessa, Ukraine, March 11, 2022. REUTERS/Igor Tkachenko 

Sashko Horondi, owner of the Horondi brand, which specializes in sewing backpacks and themed accessories, works on sewing body armor for the Ukrainian army amid Russia's invasion of Ukraine, in Lviv, Ukraine March 10, 2022. REUTERS/Pavlo Palamarchu 

Olena Panchenko, 32, and other volunteers prepare camouflage nets, amid Russia's invasion of Ukraine, in Odessa, Ukraine, March 10, 2022. REUTERS/Alexandros Avramidis TPX IMAGES OF THE DAY 

Parishioners and volunteers knit camouflage nets for Ukraine's Armed Forces at a church, as Russia's invasion of Ukraine continues, in Ivano-Frankivsk, Ukraine March 19, 2022. REUTERS/Yuriy Rylchuk 

A woman stacks bulletproof vests for Ukrainian army servicemen, amid Russia's invasion of Ukraine, in Odessa, Ukraine March 17, 2022. REUTERS/Igor Tkachenko 

A worker from a local construction company welds an anti-tank obstacle to be place on road around Kyiv as Russia's invasion of Ukraine continues, in Kyiv, Ukraine March 3, 2022. REUTERS/Carlos Barria 

Parishioners and volunteers knit camouflage nets for Ukraine's Armed Forces at a church, as Russia's invasion of Ukraine continues, in Ivano-Frankivsk, Ukraine March 19, 2022. REUTERS/Yuriy Rylchuk 

A woman works on bulletproof vests for Ukrainian army servicemen, amid Russia's invasion of Ukraine, in Odessa, Ukraine March 17, 2022. REUTERS/Igor Tkachenko 

Volunteers prepare food for Ukrainian servicemen amid Russia's invasion of Ukraine, in Odessa, Ukraine, March 11, 2022. REUTERS/Igor Tkachenko 

Sashko Horondi, owner of the Horondi brand, which specializes in sewing backpacks and themed accessories, works on sewing body armor for the Ukrainian army amid Russia's invasion of Ukraine, in Lviv, Ukraine March 10, 2022. REUTERS/Pavlo Palamarchu TPX IMAGES OF THE DAY 

A volunteer welds an anti-vehicle obstacle during Ukraine-Russia conflict in Lviv, Ukraine March 5, 2022. REUTERS/Pavlo Palamarchuk 

A worker from a local construction company welds an anti-tank obstacle to be place on road around Kyiv as Russia's invasion of Ukraine continues, in Kyiv, Ukraine March 3, 2022. REUTERS/Carlos Barria 

A volunteer weaves camouflage nets for Ukrainian army, as Russia's invasion of Ukraine continues, in Lviv, Ukraine March 3, 2022. REUTERS/Pavlo Palamarchuk