This striking 1989 Mongolian commemorative stamp honors the 50th anniversary of the Battle of Khalkhin Gol, the pivotal 1939 conflict between Mongolia–Soviet forces and Imperial Japan. The design features the memorial obelisk, surrounded by symbolic laurel and ribbon, set against vivid imagery of aircraft, cavalry, and tanks representing the battlefield. At the top appears the “August 1939 – Khalkhin Gol” emblem, marking this decisive moment in Mongolian and regional military history. A key thematic issue for collectors of Mongolian history, military philately, and WWII-era conflicts.