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The video appears to show US-made JDAM-ER bomb kits in action in Bakhmut. Army of Drones/Facebook© Army of Drones/Facebook

• A video shows bombs being dropped on what appears to be a Russian military warehouse in Bakhmut.
• The JDAM-ER kits have been sent to Ukraine by the US in recent months.
• The kits transform unguided free-fall bombs into all-weather, precision-guided smart weapons.

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1 of 16 Photos in Gallery©Photo by ARIS MESSINIS/AFP via Getty Images

PHOTOS: Inside the front-line trenches around a destroyed town where Ukraine is fighting the war's longest and bloodiest battle

• Trench warfare has been a major element of fighting between Ukraine and Russia around the eastern city of Bakhmut.
• Photographs from the area show elaborate networks of trenches that slice through the earth.
• This is what life looks like in Ukraine's front-line fortifications.  

Ukraine's grinding but steadfast defense of the country's eastern Donbas region is a battle in the trenches, where soldiers endure harsh conditions and the constant threat of artillery and gunfire, sometimes only a short distance away from the enemy.  

Around the war-torn city of Bakhmut, where fierce fighting between Ukrainian and Russian forces has been raging for months, winding trenches shield and house Kyiv's troops along the front lines. The elaborate networks of hollowed-out earth — which both sides have used throughout the war — zig-zag and cross over themselves, sometimes proving to be a battleground for close combat.  

A French photographer who documented life in Ukraine's trenches before the war previously described the fortifications in Ukraine's eastern Donbas as "endless bowels of Earth." 

Here's what life looks like in the front-line trenches near Ukraine's bloodiest and most intense battle, the fight for Bakhmut.

A video appears to show Ukraine striking a Russian military warehouse in Bakhmut using US-made JDAM-ER technology.

The bomb kits, which transform unguided, free-fall bombs into precision-guided munitions, have been sent to Ukraine in recent months, per reports.

The video was shared on social media by the Army of Drones, a crowdfunding initiative part of Ukraine's government-run United24 platform, which claims to have raised $108 million and purchased 3,300 drones for the army, according to Forbes.