On June 6, 2025, Russian and Indonesian naval forces conducted joint drills in the Java Sea. This exercise marked the 75th anniversary of diplomatic relations between the two countries. The drills involved the Aldar Tsydenzhapov and Rezky corvettes, and the Pechenega tanker from the Russian Pacific Fleet, alongside the John Lie and Wiratno corvettes from the Indonesian side. The joint maneuvers focused on enhancing communication skills and joint tactical maneuvering of ships. Following the drills, the Russian ships continued their long-range cruise plan. The Russian warships had previously completed a working visit to the port of Jakarta, where sailors participated in the anniversary celebrations. The Java Sea, located between the Indonesian islands of Java and Sumatra, is a strategic waterway for maritime activities. This region is significant for both countries due to its economic and military importance. The joint drills underscore the ongoing efforts to strengthen bilateral ties and enhance maritime cooperation between Russia and Indonesia.