The Russian Aerospace Forces' Su-35S fighter jets intercepted the U.S. Navy's P-8A "Poseidon" anti-submarine patrol aircraft over the Black Sea. This interception was not particularly remarkable, as it is a routine operation. What was remarkable was that the P-8A intercepted by the Russian aircraft had the AN/APS-154 Advanced Airborne Sensor (AAS) radar installed under its fuselage. Information about the performance of this radar is limited, as the U.S. Navy strictly keeps it confidential and does not disclose any technical information. However, based on scattered information, the radar's appearance, and the development of U.S. airborne radar, it can be roughly understood that it is a fully solid-state, wide-aperture active phased array radar, capable of synthetic aperture and inverse synthetic aperture radar imaging, moving target indication (MTI), and other functions. It can be used for searching submarines, surface ships, and coastal reconnaissance, as well as performing electronic warfare missions.

The U.S. Navy's P-8A equipped with the AN/APS-154 radar flying over the Black Sea is both a field test of the AN/APS-154 radar and a reconnaissance of Russian military deployments and movements, which is then provided to Ukraine. In fact, the C4ISR support provided by the United States to Ukraine, including intelligence, is the most critical. Without the C4ISR support from the United States, the Ukrainian army would be deaf and blind on the battlefield, unable to confront the Russian forces, and would have already collapsed. Therefore, although the weapons provided by the United States to Ukraine are not as much as before, the most critical support has not changed at all.

Original: www.toutiao.com/article/1841692300672012/

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