The British Army has returned to studying trench warfare tactics amid heavy fighting in Ukraine. The British note that trench warfare has evolved, according to Business Insider. The news outlet spoke with military personnel who are training Ukrainian defenders. “The United Kingdom is currently investing in its approach to studying trench warfare. Elements of entrenchment have always been part of the training, but now we are again focusing on how trench warfare has evolved,” said Lieutenant Colonel Wilson, the commander of training and delivery on the ground. He added that trench warfare has ex…