The Ukrainian Defense Forces successfully destroyed a Russian 240 mm 2S4 "Tyulpan" self-propelled mortar in the southern ...
The team created the mortar by replacing a portion of natural sand with a mixture of silica aerogel particles and shredded ...
The U.S. Military still has guns in use that were developed in the late 1970s to over 100 years ago. Of course, the military ...
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