A chilling discovery at an elementary school in <strong>Bor, Serbia</strong> has underscored the enduring legacy of conflict in the Balkans: two hand grenades were found in the basement archive room of the "Branko Radičević" school complex on Sunday, prompting the emergency evacuation of approximately 500 students from three schools within the educational center.The devices were discovered by a janitor during routine cleaning of the basement, school director <strong>Radmila Petković</strong> confirmed to local media. The institution immediately notified police and bomb disposal units, who responded swiftly to secure the scene."We followed all security protocols," Petković stated, urging the public to avoid spreading unverified information as the investigation continues.<h2>Weapons from 1999 NATO Bombardment</h2>Serbian authorities believe the grenades date from the 1999 NATO bombing campaign, when Serbian Army personnel reportedly occupied the building. Military stretchers were also recovered from the same location, lending credence to the theory that the school served as a military facility during the Kosovo conflict.Anti-mine experts from Belgrade were dispatched to safely remove the explosives. The discovery raises troubling questions about how lethal ordnance remained undetected in an active educational facility for over two decades.<h2>A Regional Problem</h2>In the Balkans, as across post-conflict regions, the path forward requires acknowledging the past without being imprisoned by it. Yet incidents like this reveal how literally the region remains shadowed by its wars.The discovery in Bor is not isolated. Similar bomb threats have been reported recently in Montenegro and Croatia, pointing to a broader pattern of unexploded ordnance and illegal weapons circulation throughout the Western Balkans. The proliferation of arms from the Yugoslav wars and subsequent conflicts continues to pose civilian risks decades after peace agreements were signed.According to regional security analysts, an estimated hundreds of thousands of weapons remain in illegal circulation across the former Yugoslavia. While major demining operations have cleared battlefields and rural areas, discoveries in urban settings—particularly in buildings repurposed after wartime use—remain an ongoing challenge.<h2>School Security Concerns</h2>The incident has prompted renewed calls for comprehensive security audits of public buildings, particularly those that may have served military purposes during the 1990s conflicts. Educational facilities that housed troops or refugees during wartime are considered at particular risk.For parents in Bor, a copper mining town in eastern Serbia near the Romanian border, the discovery was deeply unsettling. The school complex serves hundreds of families, and the realization that explosive devices were stored meters from classrooms has shaken community confidence.No injuries were reported, and classes are expected to resume once authorities complete their security sweep of the premises. The investigation into how the grenades came to be stored in the school archive—and why they went undetected for so long—continues.The incident serves as a stark reminder that even a quarter-century after the Yugoslav wars, the physical remnants of conflict remain embedded in the region's landscape, occasionally surfacing in the most unexpected and dangerous places.