Russia is changing tactics to try to capture the city of Avdiivka and plans to fight through it 'block-by-block,' ISW says

• Russia could be planning a "block-by-block" assault on the city of Avdiivka, a think tank said.
• Russia's monthslong attempts to encircle the city have been blocked by Ukrainian resistance.
• A Ukrainian military spokesperson said 40,000 Russian troops had amassed near the city.

Russian forces might have abandoned their plans to encircle the city of Avdiivka and plan to fight through it "block-by-block," the think tank Institute for the Study of War said.