Russian offensive going 'very cautiously', Ukrainian presidential adviser says

FILE PHOTO: A Ukrainian serviceman stand next to a Javelin anti-tank missile, as Russia's attack on Ukraine continues, at a position in Donetsk Region, Ukraine April 18, 2022. REUTERS/Serhii Nuzhnenko/File Photo

KYIV (Reuters) - Russia's new offensive in eastern Ukraine is going "very cautiously" and will fail because Moscow's forces lack the strength to break through Ukrainian defences, an aide to President Volodymyr Zelenskiy said on Tuesday.

Presidential adviser Oleksiy Arestovych said Rusisan forces were trying to find "sensitive spots" in Ukraine's defences but added: "Their offensive will fail - I give you a 99% guarantee - they simply do not have enough strength."