Ukraine has warned that Russian troops are trying to surround the strategic eastern city of Pokrovsk, and said the end of its role as a transit state for Russian gas flows to the European Union would stop the Kremlin using energy as a political weapon.

Russian forces are advancing in the east, slowly but surely, and they are shrinking Ukraine’s partial hold of the border region of Kursk

Across hundreds of miles of the front, Ukrainian forces are waging dozens of pitched battles for patches of land no bigger than a few city blocks. The scope of Russian attacks continues to grow, despite staggering losses,

Russia's attacks are heightening concerns over Ukraine's military management and countering assumptions that Moscow’s offensive would slow, analysts say.