It's the second time the Navy has used force against an Iranian commercial vessel since the Trump administration's blockade began last month.

20-mm cannon and 11 kills: The Yugoslav fighter that fought 200 bombers in 12 days The Rogožarski IK-3 was a Yugoslav low-wing monoplane fighter designed to take on the best in the world, equipped ...

While tanks and their big guns have been getting the lion's share of attention in Ukraine, another weapon is proving equally deadly. Medium-caliber cannon — the 20-mm to 40-mm cannon found on infantry ...