Gain, wait: Ukraine’s tentative push

Hints of the long campaign ahead are emerging, but all the operations so far are just drawing the eventual, full-scale battle lines. Cheap vaccinations could save millions of lives lost to cervical cancer; we ask why and where jab rates are falling. And why airlines have more money tied up in Nigeria than in the rest of the world combined.For full access to print, digital and audio editions of The Economist, try a free 30-day digital subscription by going to www.economist.com/intelligenceoffer

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Get a daily burst of illumination from The Economist’s worldwide network of correspondents. Our reporters dig past the headlines to get to the stories beneath—and to stories that aren’t making headlines, but should be. A unique perspective on the issues and events shaping your world.Sign up for Economist Podcasts+ at http://www.economist.com/podcastsplus-intelligence.If you’re already a subscriber to The Economist, you’ll have full access to all our shows as part of your subscription.For more information about Economist Podcasts+, including how to get access, please visit our FAQs page at https://myaccount.economist.com/s/article/What-is-Economist-Podcasts