It’s not just about ships, or tanks, or artillery. It’s really about combined arms and coordination.
Russia has serious problems fielding a modern military because authoritarian states have trouble relinquishing control to NCO level soldiers, for fear of mutiny or having their soldiers turned back on the leaders. Without them, decision-making is centralized and inefficient, and soldiers lack cohesion at the unit level. Changes in the situation on the ground require communication up and down layers, and the people who make the decisions can’t see what’s going on.
That’s why so many Russian generals and other high level officers have died in this war. An astounding amount, really. They discovered they couldn’t effectively lead from Russia, so they had to go to the front lines where they were easy pickings by drones and snipers and Excalibur artillery rounds spotted for by drones and satellites.
When the U.S. attacks something, it does so with overwhelming combined forces that include satellite and high altitude recon, massive numbers of aircraft and ships working in tandem with and communicating directly with officers and NCOs calling for fire support, etc. AWACS planes scour the area for enemy aircraft and missiles and coordinarte attacks, etc. It’s all a big choreographed operation that’s WAY more than the sum of its parts.
China has never fought a first world peer military power in modern times. Russia just has (partially), and it exposed huge weaknesses in their fighting ability. The only thing that kept Russia in the war at the beginning was that they were fighting a country that used the same weaponry they did. As the Ukraine’s weaponry has been replaced or augmented with more modern and capable western weaponry, the differences are becoming stark.
If Russia had faced NATO operating with a free hand, and neither side could use nukes, the result of the Ukraine invasion would have been NATO establishing air supremacy within a matter of days, followed by the obliteration of every Russian asset in Ukraine fairly soon thereafter.
A good comparison would be the Iraq war. Iraq had a HUGE army. Much larger than Ukraine’s. They had close to 4,000 tanks of the same quality the Russians are fielding in Ukraine. They had huge amounts of artillery. Their air force was the largest in the region with about 1,000 aircraft including all the planes Russia is flying now (Mig 29’s, etc) The soldiers were battle-hardened, experienced, and fighting defensively for their home. They were supposed to be expert at desert fighting. They were also extensively trained by Russians. Even American military experts thought the U.S. would suffer thousands of casualties in the initial phase of the war.
The tank wars wound up with 3300 destroyed Iraqi tanks vs 4 Abrams tanks damaged with a couple retired for being unrepairable. Iraq’s air force was eliminated quickly. The rest was mopping up. If Russia faced similar forces, the result would likely have been the same.
So what has China got that Russia doesn’t, either in hardware or a modern force structure? Because if China can’t coordinate all its branches and fight multiple levels at once (air, land, sea, anti-sub, etc) while retaining flexibility to change strategy as conditions on the ground change, the result of an invasion may well be a whole bunch of ships at the bottom of the Taiwan straight, or an army landing in Taiwan and finding they have no air support or something similar because Chinese fighters and ground attack planes get shot down before they get close.
China’s military leaders have to be looking at the performance of Russian equipment, tactics and men and thinking, “We’ve got some major restructuring to do.”