According to the road map, the German army first launched an attack on the British army in Iceland, which was now isolated and helpless, due to the blockade of the German aircraft groups on the Faroe Islands and the Shetland Islands, after the successful seizure of the island, the British army in Iceland, which had been increasing to 15,000 troops, had been cut off from supplies for many days, and because of the previous aggression of forcibly occupying Iceland, it could not get the support of the local people, and its morale was increasingly low, and it quickly collapsed under the unexpected attack of the German army. With the cooperation of the German Navy and Air Force, it took only one day for an elite German infantry regiment to basically control the whole of Iceland, and more than 10,000 remnants of the British army surrendered. The Luftwaffe immediately dispatched a large number of transport planes to send the strength of an airborne regiment to Iceland in one day, thus quickly consolidating the occupation of Iceland.

In the following days, the Germans continued to increase the number of troops in Iceland, increasing the total strength of the German army on the island to 15,000 men, and successively sent hundreds of planes to Iceland, thus greatly strengthening the Icelandic garrison. But what the mustache did not expect was that the German army's move not only dealt a heavy blow to the British, but also directly stimulated the Americans on the other side of the Atlantic

Although American isolationism was prevalent during this period, Americans still attached great importance to their own security, and after the German occupation of Iceland, it could directly threaten the American mainland, which most Americans could not tolerate.

Iceland is nearly 4,000 kilometers from the continental United States, which is beyond the maximum range of any aircraft in service with Germany, but with the rapid development of Shijie technology in recent years, the U.S. government believes that it is entirely possible for Germany to produce a long-range bomber with a maximum range of more than 5,000 kilometers in the next few years (which Germany has historically failed to develop). However, Germany has solved the material problem in this time and space, and the engines they have developed are no worse than those of the United States and Britain, and it is not a bad thing to estimate the strength of the imaginary enemy, and think that it is stronger. At that time, if the German mad Führer had ordered a frenzied one-way bombing of the American mainland, the inhabitants of the United States, who had not been directly involved in the war for more than 150 years, might have fallen into a large-scale panic and caused huge losses.

Even if Germany could not produce a strategic bomber with a long enough range in this Shijie war, or if the mustache was not so crazy, the German occupation of Iceland would still be a great security concern for American national security. Because the Germans could easily occupy Greenland after occupying Iceland (due to the harsh environment, it was impossible to have too many troops stationed on Greenland). It's an easy place to attack and hard to defend. ）。 And use it as a base to launch air strikes against the United States, and Greenland is a Danish possession, and the Danish government has already surrendered to Germany and joined the Axis camp, so the German army has every reason to send troops there

In fact, it was long after Britain suffered a series of defeats, and Spain and other countries that originally claimed to be neutral successively joined the Axis camp. Roosevelt had the idea of not continuing to sit on the mountain and watch the tiger fight. At that time, however, he was counting on the dog-eat-dog opportunities given to the American fishermen by Germany and the Soviet Union. Therefore, there is still some hesitation in my heart. Who knew that during the Sino-British War, the Chinese government actually used India as bait to trick the Soviet government into taking the bait, which produced a series of changes in the situation that he and the US government did not want to see

First of all, in order to open the passage between India and India, the Soviet Union took advantage of the fire to invade Afghanistan in the name of "liberating the colonies" and installed a pro-Soviet puppet government. Afghanistan was a British protectorate and a barrier to India, and the British could not afford to see it fall into the hands of the Soviet Union in any case, and Churchill was a stubborn temper and immediately declared war on the Soviet Union

Although Britain could not spare Liliang to fight directly against the Soviet Union now, it still supported the anti-Soviet forces in Afghanistan to resist by providing weapons and other means, while the "Reconquista" operation launched by the British and Indian troops after the Chinese troops withdrew to the vicinity of Nagpur was blocked and resisted by the Indian Communist forces. To a certain extent, the current Britain and the Soviet Union have actually fought each other, not to mention that once war is officially declared, it will not be so easy to reconcile. Roosevelt was depressed to find that the British had created a new enemy before the Germans, and that it was so strong that even the United States was reluctant to directly confront it

At the beginning, Roosevelt also pinned his hopes on the mustache to continue his tradition of treacherous sneak attacks, temporarily let go of the not very easy to bite Britain, and took advantage of the opportunity of the Soviet Union to get bogged down in Afghanistan, tore up the Soviet-German non-aggression pact and launched a surprise attack on it, who knew that at this time Britain first lost the Faroe Islands, and then lost all the capital ships that could fight in the naval battle, resulting in a big bad situation, so that the Germans were naturally bent on killing Britain first, and then the Soviet Union fell into a quagmire and solved their worries

Under these circumstances, no matter how indecisive Roosevelt's personality was, he finally made up his mind to join the alliance and participate in the war. As long as the United States joins the alliance, it can legitimately send troops to India to help Britain; As long as Britain can quickly eliminate the Indian communist forces and "recover" India, and the Soviet Union faces resolute resistance from the anti-Soviet forces, its determination to control Afghanistan will certainly not be as firm as before, and the Soviet Union and Britain will have the possibility of shaking hands and making peace. And as long as the Soviet Union could spare its hands, even if the mustache did not launch a surprise attack on the Soviet Union, sooner or later Stalin would stab Germany in the back

In addition, the formal accession of the United States to the European Union is also conducive to the mediation of Sino-British peace talks, in the current situation of the Nazis in full swing, Roosevelt had to temporarily put aside the idea of containing China, and try to win over this great power with amazing war potential, even if it cannot be persuaded to join the alliance, but also strive for it to maintain neutrality in the war, and first concentrate on Liliang to defeat the Germans, which is the most correct choice

However, although the German occupation of Iceland had brought about a noticeable change in the attitude of the United States towards entering the war, it was not a matter of a day or two for Congress to pass a resolution to declare war, so it was better for Germany to declare war on the United States first. And this kind of thing, Roosevelt is very good at it, in history Japan was forced by it to have no choice but to declare war on the United States, although the devil will directly attack Pearl Harbor to Roosevelt's expectations, but from a strategic point of view, Roosevelt's move is still very powerful, of course, if it were not for the fact that the President of the United States has no right to declare war, there is no need to be so troublesome

Two or three days later, Roosevelt announced in a high-profile manner that the scope of the US warship escort would be expanded from trade with British military goods to all trade with Britain, and that there might not be many convoys, or even just one in some cases, but as long as the convoy was attacked (Note 1), the United States would have an excuse to declare war on Germany, so that Germany's strategy of blockading the British Isles would be completely ineffective, and the mustache finally couldn't bear it anymore

Note 1: No matter who fought it, the Axis countries are always the most suspicious in terms of motives, and the US government said that Germany fought it, and if it weren't for the fact that communications are developed now and secrecy is not as easy as it was back then, Roosevelt would even want to copy the "Maine Incident", sink a warship himself, and then frame it for Germany (to be continued......