Ukrainian and Russian forces have dug sprawling trenches along the front lines of the war.
The trenches echo scenes from bloody combat of World War 1 and World War 2.
Take a look at photos comparing trench warfare in Ukraine today and the historic World Wars.
These winding trenches hinder advances by enemy troops and protect defenders, zig-zagging and crossing the battlefield, and in some respects, they're strikingly reminiscent of scenes of trench warfare from World War I and World War II, showing the enduring presence of this type of fighting.
The following photos show the front-line trenches in Ukraine today, where the most devastating land war in decades is being fought, and those of two of the 20th century's worst conflicts.
Organizations:
Service
Locations:
Ukraine, Wall, Silicon, Bakhmut, French