Russia-Ukraine war at a glance: what we know on day 725; Zelenskiy pleads for more arms as troops pull out of Avdiivka; Biden promises he will 'fight' to get Ukraine 'the ammunition they need'See all our Ukraine war coverage

Byline: Guardian staff Volodymyr Zelenskiy issued a desperate plea for fresh arms on Saturday after Ukrainian troops pulled out of Avdiivka, handing Moscow its first major military victory since last [...]