The RAF scrambled more than 200 fighters from home to cover the transport ships, but in the face of the more superior FW190 fighters and the average quality of the pilots, the British fighters quickly suffered a crushing defeat, with 179 shot down in one day, while the German lost only 41 aircraft, of which 18 were fighters

After discovering that the Luftwaffe was so powerful, Churchill even had the idea of giving up the 400,000 men to defend his homeland, but the pride of the British aristocracy made him decide to fight hard. Therefore, Churchill immediately ordered the domestic air force to enter the state of war as quickly as possible, and at the same time asked the Royal Navy to provide strong support for the retreat from Dunkirk, on the one hand, hoping that the naval ships could help transport personnel to speed up the withdrawal, on the other hand, in the case that the air force could not defeat the Germans, Churchill could only hope for the Royal Navy's fleet air defense capability.

On 28 July, a total of 1 cruiser, 8 destroyers, and 26 other ships arrived in the English Channel, but that night German naval submarines, torpedo boats, and minesweepers also made sorties from the newly occupied ports of Holland and Belgium in an attempt to attack the retreating British ships under cover of night. At the same time, in order to make the British unable to see their true intentions, Mustache canceled the order for the armored forces to stop advancing, and the most feared armored division of the British and French forces entered the battle again.

On the morning of July 28, the Dunkirk region was filled with smog (at that time, the air pollution in the Western powers was worse than ours now. This is how London's name "fog capital" comes from, and the United States is in a much better position because of the large proportion of oil in the energy mix. However, the Luftwaffe had several times more sorties that day than the day before, thanks to the help of airborne radar, and at the same time, the Navy's submarines and torpedo boats also took advantage of the fog to make decisive attacks, although due to the shallow depth of the English Channel, ordinary torpedoes were used, but under the cover of fog. The results are still quite encouraging. However, the main reason was that the Luftwaffe's bombing frenzy completely attracted the attention of the British fleet. Thus giving German submarines and torpedo boats more opportunities to fish in troubled waters.

Although the Air Force had suffered a heavy loss the previous day, Churchill was well aware of the consequences of dealing with German aircraft by ships alone, so on 28 July the RAF flew more and more sorties, totaling more than 1,500 sorties. As a result, the losses were greater than on the 27th. More than 300 planes were shot down during the day. The losses at night were more than 500 aircraft, and even with a large number of British ships in the strait, less than one-third of the pilots survived. The British pilots had written suicide notes in advance before boarding the plane, because they knew very well that they would not be able to come back nine times out of ten

On this day, the exchange ratio of fighters between the two sides was still as high as 1:10, you must know that the losses of German fighters are also included in the results of the Royal Navy, from this point of view, the British Royal Air Force simply lost the bottoms

The reason why the results are so disparity, in addition to the difference in the performance of the fighters themselves, the radar jishu of the two countries is also a very important reason, although today's British radar jishu has barely caught up with Germany as a whole, but the German radar jishu from China is more advanced in concept, and the selected band has stronger anti-jamming ability for bad weather, plus the English Channel is thick fog on this day, because German fighters are escorting dive bombers, The British fighters took them as the target of attack, so most of the battles took place at low altitudes, which were greatly affected by dense fog, so the German fighters with stronger all-weather combat capabilities also took advantage

In addition to the Royal Air Force, the ships of the British Royal Navy also undertook a very heavy air defense task, due to the greater power of the shipborne radar, so although the British Navy has only invested a small number of ships for the time being, but it has achieved certain results, and because there are a large number of civilian ships in the strait, it is difficult to distinguish between airborne radars in the dense fog, so the British Navy has lost relatively few ships, and the cruiser among the combat ships was sunk (because the German aircraft must have picked the big ship to blow up first), at least compared with the Air Force, The losses are much smaller.

However, the number of more than 200 civilian ships sunk and nearly 20,000 military and civilian deaths and missing people made the British Royal Navy, which had become a laughing stock because of repeated failures in the past two years, was deeply ashamed. The total number of Allied ships in the English Channel reached a staggering 120 at its peak, of which they had three-dimensional air defense (both large-caliber and small-caliber anti-aircraft guns). Cruisers and destroyers combined exceeded 80 units

With the continuous increase in the number of ships, the air defense capability of the British naval fleet, which already has artillery sighting radar and proximity fuses, began to increase exponentially, and in the face of the large area barrage blasted by the salvo of hundreds of large-caliber anti-aircraft guns of the British fleet (and later reached more than 1,000 guns), the stuka dive bombers with slow flight speed (although the large-caliber anti-aircraft guns are basically ineffective when diving attacks, but before diving, Stuka needs to rise to an altitude of 3000 meters, At this time, large-caliber anti-aircraft shells equipped with proximity fuses still pose a great threat to them. Suffering extremely heavy losses, the Luftwaffe was forced to switch to a large group of horizontal bombers for high-altitude bombing, but in the later stages it was still difficult to defeat the increasing anti-aircraft fire of the British army, and finally forced Fat Guy to ask Mustache to suspend the air raid on British ships

In addition, it is worth mentioning that due to the increasing number of British surface ships in the English Channel, and most of them have strong anti-submarine capabilities, the German submarine forces, which had achieved considerable results a few days ago, were also severely damaged (as for the torpedo boats, which were originally life-for-life, the number of equipment of the German Navy was not large, and at this time it was basically lost). After being bombed and sinking nearly 20 submarines, he decisively evacuated, and seized the great opportunity of the British Navy's main forces to concentrate on the English Channel and trade routes to escort Liliang and thus inadequately carried out extensive battles in the ocean, causing greater losses to the British (to be continued......