NATO Secretary General Jens Stoltenberg has warned that Ukraine and other nations must be prepared for a long war. He said that there is no swift end to the war in Ukraine. Meanwhile, the British intelligence highlighted that Russia had started strengthening secondary defence lines. The UK defence ministry said that Tokmak had become a lynchpin of Russian second main line of defences. It further added that Russia was likely deploying more checkpoints, ‘hedgehog’ anti-tank defences in the town of Tokmak, which is roughly 16 kms behind the frontline. Watch for more details.