1. China and Russia have conducted a joint aerial patrol over the East China Sea and western Pacific, marking their 10th such operation as part of an annual cooperation plan.
2. On Tuesday, two Chinese warplanes and seven Russian warplanes briefly entered South Korea's air defense identification zone. South Korean military responded by dispatching fighter jets to prepare for any contingency.
3. China and Russia have been strengthening their military ties, with the latest collaboration coming after they conducted joint missile defense drills on Russian territory earlier in December 2025 (for the first time in eight years).