俄媒：中俄海军潜艇首次在太平洋水域举行水下联合巡逻

Core Viewpoint - The joint underwater patrol conducted by the Russian and Chinese navies in the Pacific signifies a strategic deterrent capability and reflects high levels of military trust between the two nations [1][2]. Group 1: Joint Patrol Details - The underwater patrol began in early August following the "Maritime Joint-2025" exercises, involving the Russian submarine "Volkhov" and Chinese submarines along pre-agreed routes in the Sea of Japan and East China Sea [1]. - The "Maritime Joint-2025" exercises took place from August 1 to 5 near Vladivostok, Russia, involving multiple naval vessels and aircraft from both countries [1]. - After completing the joint patrol, all participating submarines returned to their respective bases [1]. Group 2: Strategic Implications - The joint submarine patrol enhances the operational capabilities of both navies in underwater warfare, improving their search, reconnaissance, and attack abilities [2]. - The covert nature of submarine operations serves as a significant deterrent against potential adversaries, contributing to regional peace and stability [2]. - This new form of joint patrol represents an evolution in naval cooperation between Russia and China, following previous surface vessel patrols [2].