 Russia suffers heavy losses in frontal attacks near Avdivka. Russian forces have suffered significant losses in armoured vehicles in their attempts to encircle the city of Avdivka and are making few gains. British Defence Intelligence announced it. It is said that in recent days Russia has continued to prioritise an operation attempting to encircle the Donetsk Oblast town of Avdivka. However, Russian forces have made only marginal progress at the cost of heavy losses in armoured vehicles. In particular, Russia's 10th Tank Regiment has likely lost a large proportion of its tanks while attempting to surround Avdivka from the south. The regiment is part of the Third Army Corps. The first major new formation Russia stood up to support the invasion of Ukraine since August 2022. Numerous open-source accounts suggested that Third Army Corps has been particularly dogged by problems with ill-discipline and poor morale. Despite a likely period of training in Belarus, the formation still appears to display limited combat effectiveness. 10th Tank Regiment's losses have likely largely been due to tactically flawed frontal assaults, similar to those in other recent failed Russian armoured attacks, such as around the town of Volodar. Intelligence analysts have pointed out tactically the situation near Avdivka is similar to that in the larger town of Bakhmut further north. Ukrainian forces continue organised defence, but their supply lines to the west are increasingly threatened by the Russian Envelopment operation.