Thus, Kaiserreich fought here!
February 5th, 1936. Despite the ongoing financial crisis that is caused by the Berlin stock market crash (subsequently known as 'Black Monday'), people continues on with their lives, from one day to the next.
And February 5th seems to be going to be ordinary day, in an ordinary month, in an ordinary year, as the world continues it graceful path, as it always had.
Fate however, like in the first Weltkrieg, will say otherwise to such normality.
Inter-Dimensional Tunnels or IDTs (also known as GATEs) help connect the previously unknown Saderan Empire and Falmart, to our Earth. And the Saderans attacked the following nations.
The Saderans attacked Berlin (the German Empire).
The Saderans attack Paris (the Commune of France).
The Saderans attacked Algiers (the French Republic).
The Saderans attacked Ottawa (the Dominion of Canada).
And the Saderans attacked Tokyo (the Empire of Japan).
The respective Saderan expeditions' successes varied, but by the end of the day, the Saderan expeditions will be destroyed.
The combined casualties of the various nations? 15,000 killed and wounded, and 5,000 believed to have been kidnapped by the Saderans.
The combined casualties of the Saderan expeditions? 800,000 killed, 200,000 captured and 300,000 believed to have escape through the GATEs.
Reports and accounts of Saderan soldiers kidnapping, robbing, raping and murdering innocent civilians, who are minding their own business, enraged both the international community.
Of course, war crimes committed against Saderan military personnel, such as summary execution of surrendering or wounded Saderan military personnel, was either ignored or glossed over.
The respective nations' intelligence services interrogate (with cases of torture) the surviving Saderan POWs, especially those of high-value (generals, other high-ranking officers and nobles).
And the treatment of POWs varied greatly, from the somewhat mild treatment of the Dominion of Canada's POWs camp, to the inhumane and horrific experimentation of Saderan military personnel, by one of the Empire of Japan's special biological and chemical weapons unit, Unit 731.
Again, accounts of said accounts are ignored or glossed over.
And each nation quickly secured their respective GATEs, placing machine guns, armoured cars, tanks and artillery, just in case that the Saderans decided to attack again.
Each of the nation declared war on the Saderan Empire, citing the 'undeclared aggression by the Saderan Empire' as a large factor.
They all say that they sending their troops to 'liberate our citizens' or that some other bullshit reasons, but like with all wars, all belligerents have 'wheels within wheels' reasons to why they want to go through their respective GATEs.
Syndicalist France saw this as an opportunity to spread syndicalism, and in the process, become the de facto leader of Syndicalism (the Union of Britain and Oswald Mosley will beg to differ on that idea).
The Dominion of Canada and the French Republic saw this as an opportunity to gain potentially limitless resources, before they liberate their respective homelands from the Syndicalist scum.
And the German Empire and the Empire of Japan saw this as expanding their influence and holdings.
The Commune of France, and the Empire of Japan were the first to go through their GATEs, each sending a division through their GATEs, quickly setting up bases.
The Commune of France's GATE is located near the town of Rondel, while the Japanese is located west of the Inland Sea. Both quickly set up bases, fought off Saderan attempts to dislodge them and spread their zone of influence (while attempting to dislodge the other's sphere of influence).
Meanwhile, the governments of Dominion of Canada, the French Republic and the German Empire however, were more hesitant to send troops in, given to the recent economic crisis.
This however, angered their respective populace against the governments, as they cry out for justice for those killed on February 5th.
Deciding to take the initiative, the Germans invite the Canadians and the Free French to Casablanca, to discuss the current situation they'd find themselves in. Though hesitant, the Canadians and the French Republicans decided to go along with the Germans and see what they want.
Once in Casablanca, the German representatives, led by Foreign Minister Konstantin von Neurath, laid out a deal with the Canadians and French Republicans. The treaty proposed something that is mutual defense treaty against the Syndicalist nations (and technically the Saderan Empire), and a mutual economics treaty that allow technological exchanges.
The Canadians and the French Republicans were interested, but highly suspicious of the German's offer. After all, they went to war against the Germans a generation ago. The French Republicans even more so, as the Germans hold part of the mainland, and the average Frenchman doesn't like dealing with the Germans.
The faction of the signed treaty will be called the 'Coalition'.
The British and French syndicalist nations heard about this, they decried this treaty, calling it a 'Pact with the Devil' (If the Devil spoke German, wears a Pickelhaube and eats sausage and sauerkraut every day).
To which Winston Churchill, famous British alternate history author, famously quipped: "If the Saderans invaded Hell, we would make at least a favorable reference to the Devil in the Canadian House of Commons."
One month later, the Coalition armies assembled at their respective GATEs, marched in.
AND CUT! This the first part, so the second part will come sooner or later.