S1) 2025's Most Tense Borders (So Far)
2025's Most Tense Borders (So Far) In an increasingly interconnected world, borders remain some of the most politically sensitive and volatile regions on Earth. As of mid-2025, several borders across the globe have become flashpoints for geopolitical tension, fueled by territorial disputes, nationalism, resource competition, and military build-ups. These borders not only define the limits of sovereign states but also embody deep-rooted historical grievances and modern-day strategic interests. Below is a deep dive into the most tense international borders of 2025—so far. 1. Russia–Ukraine Border The Russia–Ukraine conflict continues to dominate headlines in 2025. Despite international mediation efforts and several rounds of ceasefires, fighting has persisted sporadically, especially in eastern Ukraine and areas surrounding Crimea. Russia's militarized presence in the Donbas region and its control over Crimea since 2014 have ensured that this border remains one of the most dange...