Along Ukraine's frontlines as Russia presses winter offensive

Ukrainian service members fire a SPG-9 anti-tank grenade launcher toward Russian troops in the frontline town more

Ukrainian servicemen gather around a BMP-2 infantry fighting vehicle on a road outside the frontline town of Bmore

A Ukrainian service member checks the damage of a building in the frontline town of Bakhmut, Ukraine, Februarymore

Ukrainian servicemen take cover during a shelling outside the frontline town of Bakhmut, in Donetsk region, Ukmore

A Ukrainian service member walks next to a burning building in the frontline town of Bakhmut, in Donetsk regiomore

A Ukrainian serviceman looks through a hole in a dugout at the frontline position near the Vuhledar town, in Dmore

Bohdan, "Fritz", the deputy of commander of the unit in 79th Air Assault Brigade, fires a rocket-propelled gremore

Ukrainian servicemen sit inside a military truck on a road outside the frontline town of Bakhmut, in Donetsk rmore

A Ukrainian service member checks parts of a Tochka-U ballistic missile in the frontline town of Bakhmut, in Dmore

A Ukrainian serviceman smiles as he sits inside a tank outside the frontline town of Bakhmut, in Donetsk regiomore

Ukrainian servicemen fire a BM-21 Grad multiple launch rocket system towards Russian positions on a frontline more

A Ukrainian service member fires a mortar towards Russian troops in frontline near the Vuhledar town, in Donetmore

Ukrainian service members place the body of a fellow soldier into a van near a frontline in Donetsk region, Ukmore

A Ukrainian service member smokes near a frontline in Donetsk region, Ukraine, February 8. REUTERS/Yevhenii Zamore

A body of a local resident lies in an empty street in the front line city of Bakhmut, Ukraine, February 8. REUmore

Smog is seen during a shelling in the front line city of Bakhmut in Donetsk region, Ukraine, February 9. REUTEmore

Ukrainian service members ride atop of a BMP-2 infantry fighting vehicle near a frontline in Donetsk region, Umore

A Ukrainian service member checks a wood stove at a position near a frontline in Donetsk region, Ukraine, Febrmore

Ukrainian service members ride atop of a BMP-2 infantry fighting vehicle near a frontline in Donetsk region, Umore

Ukrainian service members fire a mortar towards Russian troops in frontline near the Vuhledar town in Donetsk more

A Ukrainian serviceman climbs onto a military vehicle in the front line city of Bakhmut in Donetsk region, Ukrmore

Ukrainian army from the 43rd Heavy Artillery Brigade fire the German howitzer Panzerhaubitze 2000, called Tinamore

A fire is seen in front line city of Bakhmut, in Donetsk region, Ukraine, January 26. REUTERS/Yan Dobronosov

A Ukrainian serviceman looks on in Bakhmut, Donetsk region, Ukraine, January 27. REUTERS/Yan Dobronosov

Ukrainian servicemen evacuate their brothers-in-arms who were wounded during shelling at the frontline, near Bmore

A Ukrainian serviceman lays down during a shelling of Russian troops at a frontline in Donetsk region, Ukrainemore

Ukrainian servicemen are seen near the frontline near Soledar in Donetsk region, Ukraine, January 23. REUTERS/more

A missile trace is seen in a sky near Bakhmut in Donetsk region, Ukraine, January 23. REUTERS/Oleksandr Ratushmore

Members of the 3rd Separate Assault Brigade (Azov Unit) of the Armed Forces of Ukraine fire 152 mm howitzer 2Amore

A Ukrainian serviceman sits inside his broken tank near the frontline town of Bakhmut, in Donetsk region, Ukramore

Ukrainian servicemen fire a mortar on a front line in Bakhmut, Donetsk region, Ukraine, January 27. REUTERS/Yamore

A fire is seen in front line city of Bakhmut in Donetsk region, Ukraine, January 26. REUTERS/Yan Dobronosov

A Ukrainian army soldier from the 43rd Heavy Artillery Brigade holds a cup of tea in front of the German howitmore

Ukrainian servicemen fire a 2S7 Pion self-propelled gun toward Russian positions, on a frontline near Bakhmut more

A general view shows the front line city of Bakhmut, in Donetsk region, Ukraine, January 26. REUTERS/Yan Dobromore

Ukrainian servicemen stand near a military vehicle with anti-aircraft cannon at their positions near a front lmore

Ukrainian servicemen react in Bakhmut, Donetsk region, Ukraine, January 27. REUTERS/Yan Dobronosov

Ukrainian servicemen take part in tanks military drills in Kharkiv region, Ukraine, January 25. REUTERS/Vitalimore

Ukrainian servicemen rest at their positions near a front line in Donetsk region, Ukraine, February 1. REUTERSmore

Ukrainian servicemen evacuate their brother-in-arms, near a frontline in Donetsk region, Ukraine, January 30. more

The 3rd Separate Assault Brigade (Azov Unit) of the Armed Forces of Ukraine fire 152 mm howitzer 2A65 Msta-B, more

A Ukrainian military helicopter is seen in Donbas region, Ukraine, January 25. REUTERS/Oleksandr Ratushniak

A car rides on an empty road near a frontline in Donetsk region, Ukraine January 29. REUTERS/Viacheslav Ratynsmore

Ukrainian servicemen are seen near Bakhmut, Donetsk region, Ukraine, January 26. REUTERS/Yan Dobronosov

Ukrainian servicemen stand at their positions near a front line in Donetsk region, Ukraine, February 1. REUTERmore

Ukrainian service members attend offensive and assault drills in Zaporizhzhia Region, Ukraine, January 23. REUmore

Ukrainian servicemen are seen in Bakhmut, Donetsk region, Ukraine, January 27. REUTERS/Yan Dobronosov

Ukrainian servicemen are seen at a site of a Russian missile strike in Kyiv, Ukraine, January 26.  REUTERS/Glemore

Ukrainian servicemen fire a 2S7 Pion self-propelled gun toward Russian positions on a frontline near Bakhmut imore

A Ukrainian army soldier from the 43rd Heavy Artillery Brigade jumps off the German howitzer Panzerhaubitze 20more

A Ukrainian serviceman walks in Bakhmut, Donetsk region, Ukraine, January 27. REUTERS/Yan Dobronosov

A dog named Chip sits next to a Ukrainian serviceman who repairs a tank near the frontline town of Bakhmut, inmore