The Ukrainian army launched Operation Welsh in the Kupyansk sector of Kharkiv Oblast last week. The operation, led by the Khartia Brigade of the National Guard, saw the Ukrainian soldiers penetrate the Russian rear guard through underground gas pipes, which were also used by the Russian soldiers, creating all-out underground warfare. Ukrainian sources claim that more than 100 Russian soldiers have been killed and 30 captured so far.

The Ukrainian army launched Operation Welsh in the Kupyansk sector of Kharkiv Oblast last week. The operation, led by the Khartia Brigade of the National Guard, saw the Ukrainian soldiers penetrate the Russian rear guard through underground gas pipes, which were also used by the Russian soldiers, creating all-out underground warfare. Ukrainian sources claim that more than 100 Russian soldiers have been killed and 30 captured so far.