The hardening of NATO's northern frontier

Along the border of Finland and Russia, tensions reminiscent of the Cold War have resurfaced. We visit the forested 832-mile frontier, Europe’s longest with Russia. Sign up for the Reuters Econ World newsletter ⁠here⁠ (https://www.reuters.com/newsletters/reuters-econ-world/) . Listen to the Reuters Econ World podcast ⁠here⁠ (https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flink.chtbl.com%2FAbxd8GDx&data=05%7C02%7CGayle.Issa%40thomsonreuters.com%7Cdeedd17f603f4b360c6d08dd887d4c6f%7C62ccb8646a1a4b5d8e1c397dec1a8258%7C0%7C0%7C638816793925825661%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=IMNQNODuIb47FCT8slHrDm44gzMUrcqH53c1Od8ryB4%3D&reserved=0) . Find the Recommended Read ⁠here⁠ (https://www.reuters.com/lifestyle/original-birkin-bag-sells-auction-record-10-million-2025-07-10/) . Visit the Thomson Reuters Privacy Statement for information on our privacy and data protection practices. You may also visit megaphone.fm/adchoices to opt out of targeted advertising. Learn more about your ad choices. Visit megaphone.fm/adchoices (https://megaphone.fm/adchoices)