Though Russia has made no major gains on the Ukrainian front line since February, its forces are keeping up the pressure, with the avowed aim of seizing more territory. Last year, the Ukrainians found their attempts to liberate more of the occupied lands stymied by Russian-built fortifications. But, hoping for swift victories, they hadn’t really built an equivalent on their side. They’re now scrambling to do so before the Russians – who’ve just launched a major mobilisation drive – gather their strength for a summer offensive. FRANCE 24's correspondent in Ukraine Gulliver Cragg reports on one of the key challenges for Ukraine this year. #Ukraine #report #frontlines 🔔 Subscribe to France 24 now: https://f24.my/YTen 🔴 LIVE - Watch FRANCE 24 English 24/7 here: https://f24.my/YTliveEN 🌍 Read the latest International News and Top Stories: https://www.france24.com/en/ Like us on Facebook: https://f24.my/FBen Follow us on X (Twitter): https://f24.my/Xen Browse the news in pictures on Instagram: https://f24.my/IGen Discover our TikTok videos: https://f24.my/TKen Get the latest top stories on Telegram: https://f24.my/TGen