 Russia has changed its battle tactics in Ukraine, a new phase of the war has begun. The Kremlin decided to launch a full-scale invasion of Ukraine after failing to establish control over it through hybrid methods and now, having failed again, is waging a war of attrition. About it informed UK Defence Intelligence. UK Defence Intelligence said since 2014 Russia's strategic goal in Ukraine has highly likely been consistent to control its neighbour over previous years. Russia pursued this objective through subversion by fermenting an undeclared war in Donbas and by annexing Crimea. On 24 February 2022, Russia pivoted to a new approach and launched a full-scale invasion which attempted to seize the whole country and depose its government. By April 2022, Russia realised this had failed and focused on expanding and formalising its rule over Donbas and the South. It has made slow and extremely costly progress. In recent weeks, Russia has likely changed its approach again. Its campaign now likely primarily seeks to degrade the Ukrainian military rather than being focused on seizing substantial new territory. The Russian leadership is likely pursuing a long-term operation where they bank that Russia's advantages in population and resources would eventually exhaust Ukraine, UK Defence Intelligence summarised. On 23 February, UK Defence Intelligence reported that in near future Russian forces may again try to achieve some success near Volodar, where they suffered heavy losses in February but they are unlikely to have the resources to do so.