there should be a multi layered defense, ROC has been testing the Yun Feng long range cruise?? missile that reportedly able to reach Beijing.
the Taiwanese defense planners had already estimate that it needs at least 1200 anti ship missile to defeat an invasion fleet.
Of course Taiwan wants the latest American cruise missiles. The island country is counting on a growing arsenal of long-range missiles to make it “indigestible” in the event of a Chinese attack.
there's the hundreds of Hsiung Feng II's and III's which are optimized for to cover the narrow strait, that are road mobile and (some) I believe are placed inside bunkers deep inside Taiwan mountains.
some if these HF II's are reported to have an upgraded version able to hit target as far as 1200Km
On January 11, Taiwanese military sources confirmed that Taiwan had deployed a small number of extended-range Hsiung Feng IIE cruise missiles. Developed by Taiwan’s National Chung-Shan Institute of Science and Technology (NCSIST), the extended-range missile has a range of 1,200 km, double that...
and there are orders for a total of 400 new GL Harpoons otw
The U.S. State Department announced Oct. 26 that it had approved the massive anti-ship cruise missile sale to Taiwan.
also part of the deal is the MGM-140 ATACMS quasi ballistic missile with 300KM range, able to hit PLA assembly point. 64 are reportedly ordered.
On October 21, the U.S. State Department approved the sale of 64 MGM-140 Army Tactical Missile Systems (ATACMS) and 135 AGM-84H Standoff Land Attack Missile Expanded Response (SLAM-ER) missiles to Taiwan. On October 26, the United States also approved the sale to Taiwan of up to 400 RGM-84L-4...
Taiwan's own air launched cruise missile will join the defense with the domestic Wan Chien ALCM could be used to hit enemy command and control sites, radars, airfields, fuel and food storage. Taiwan air force has an arsenal of over 50+ AGM-88 HARM anti radiation missile, which could be used against ships, consider ships radio emission and the RGM-84 air launched harpoons.
If Taiwan could manage to sink just 1/4th of the initial invasion fleet the chance of success of the PLA troops that will make landfall will exponentially drop. Consider many of Taiwan's beaches that the PLA could use as landfall (west side) site sit right next to built up urban area
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The PLA will have a hard time advancing against an entrenched enemy. There's no guarantee that the PLA troops that make landfall could be resupplied with Taiwan kept lobbing missiles at transport ships behind them, which will likely carry their food, ammunition etc. The amount of bullets wasted in a urban set up is far higher than that used in an open terrain as Vietnam stats has shown us.
Ammunition consumption is five to ten times greater in urban envi-ronments than in field environments. (See Chapter 7 for more information.)
here's just a glimpse for the readers to comprehend how hard it is to execute an urban warfare.
this is Aleppo, a city in northwestern Syria
it took the SAA a brutal 4 years stalemate, in a house to house fighting, whilst having an army of (basically) angry civilians turned rebels.
mind to tell readers that the SAA had complete aerial supremacy
over the rebels during the 4years long fight. an infinite amount of supply of artillery, men and machine. not to mention a relatively safe supply line into the city.
here case study#2
Size: 180 km2
it took the might of approximately 100.000 Iraqi men, the non-stop 24/7 US+Allies aerial and artillery bombardment, tons of supply and above all an open supply line all the way from Baghdad to Mosul.
it took the coalition 9 months+ to capture the entire city as well as it's surroundings.
now here's Taipei.
Size: 1,140 km2
both China and Taiwan knows that PLA only have like twice a year to do an amphibious landing in Taiwan?? otherwise the weather and current will not allow to do so.
not to mention you could only do that in some beachhead which is situated in the western flank of the island.
The Taiwanese would have ample time and preparations to detect and locate PLA massing point on the other side of the strait, the US will likely provide them with this. by that time they would have time to position it's missiles and long range artillery to basically turn your massing point into oblivion.
even if let's say the PLA manage to miraculously have enough transport ship to transport their troops, the PLA would still have to face losses from Taiwanese anti-ship missiles.
The Taiwan strait is like 180km wide, in peacetime you'll need hours to cross the strait, in wartime it'll took longer consider that you'd have to slow down to avoid minefields, etc. If you manage to land what's left of your troops in Taiwan beaches, you'll have to fight Taiwanese men in those beaches, which not even in the best of situation will take a day.
After you secured the beachhead, you'll somewhat have to do with your limited men on the island to face and subdue the entirety of the island as well as it's cities, where ROC troops are waiting in ambush. Urban warfare and mountainous terrain as I have pointed above greatly benefited the defender. China will have to devote a significant resources just trying to defend their lifeline (transport ships carrying war materials) all the while Taiwan kept targeting them from the continuous lobbing of missiles.
the situation that Taiwanese military faces in regard to the PLA is not as dire of that the Syrian rebels and ISIS against the SAA and coalition.
that city (Taipei) is just one you would have to conquer, there's a lot of mega urban settlement in Taiwan, like Taichung.
The odds that the PLA men will have to face is just simply ginormous. we're not even talking about if the US and Japan decide to intervene.