The Europa Unification War
One of the most mythologized wars that took place entirely on Earth, although even within the context of the 20th century it did not have the largest number of casualties*, many of the long term trends of the continent could trace back to the events that occurred during that conflict. Although still somewhat of a hyperbole to claim the war as the forge that unified European as a common national identity it did laid the foundation for the environment to allow that to form.
The origin of what would become known as the Unification War (more commonly known as the Europa Unification War to differentiate from The Consolidation War in Asia which occurred in the same time period) had its origins in the Pan European War of the early 20th century, in which the two Germanies (and some other minor nations of little note) took on the rest of the continent and lost, which ended in further dismemberment of the German lands and people. As the losers of the war the German peoples suffered further humiliations, political instability, and economic malaise. All these variables led to the discreditation of the political concept of democracy and republician forms of governments within the Germanies.
It was under those conditions in which the Great Wolf and his Knights of the Crooked Cross made their presence felt in those shattered lands, quickly gaining the support and adoration of the peoples with promises of bringing back the glories of the by now long forgotten reich**.
Ironically, according to research in recent centuries, the Great Wolf did not start the war with the intention of unifying the peoples of Europe. The general consensus is that his primary motivations at the time were much more localized in nature, that of the unification of the various Germanic peoples and other similar groups. Much of that goal was, surprisingly enough, achieved through peaceful means of diplomacy.
It was most likely that those small successes were the immediate catalyst for the resulting war, as the other regional powers, envious of the resurgence of Germanic power, decided to wage war with the full backing of their massive empires. However, the long term leadup to the conflict was more complex. The Pan European War had been ruinously expensive even for the victors, and in the short peace that followed they had attempted various schemes to recoup their losses, all of which had failed. Thus a war of plunder (despite not working in the previous war) was thought as the solution to economic woes***.
The resulting war was brutal and cruel in the extreme, lasting longer and costing more lives than the Pan European War before it. The full might of industrial society and scientific genius of a continent was utilized in the wholesale slaughter of peoples and destruction of cities. For it was the first war in which effective mass bombing of civilian assets was conducted, mainly by the Perfidious Albion, which also conducted all of its other cowardly and underhanded tactics that it utilized in the last war such as the distant blockade.
The war was a war of quality vs quantity. The superior scientific and physical prowess of the Aryan people against the hordes of colonial mongoloid forces of Albion and Franks (and later on the seemingly endless hordes of Judeo-bolshevik Oriental Despotism).
For over a decade the war waged on. While the Franks and their protectorates fell within a year, while the Albion clawed on until they too were subdued, the first country to be conquered completely via the then novel air and sea power****.
Just in time too as the soon the hordes of Judeo-bolshevik Oriental Despotism attempted their own conquest of the continent. Driven by their morally bankrupt and depraved ideology, they were quickly stopped and soon the entirety of their dark lands was under the guiding light of European civilization, the dark beasts and their evil banished beyond the Ural mountains. By the middle of the century the whole of Europe once again knew peace, a peace more lasting and firm than the previous morally bankrupt one.
Technological-wise the war was marked by rapid advances in technologies and doctrines in integration of said technologies. From the tops of skies to the depths of oceans total war was waged as every terrain was fully utilized for the first time*****.
It was the first war in which vertical dropped forces****** were instrumental in the conquest of an entire country. The first war in which artillery gained a strategic role in the form of theater ballistic missiles. Beyond deployment of ground forces, air assets were utilized in many other roles, both offensive and defensive.
Although unimpressive today, the rate of movement of the armies during the war strained the technologies of the era to their breaking point. For example, the average distance from Königsberg to the A-A line was over 2,000km, much of it effectively wilderness. Said distance was crossed by the armies of the Crooked Cross in under six weeks with vehicles that could do little better than 30kph offroad, while aircrafts were limited in capabilities in both carrying and durability.
Unfortunately, the war was also the first war in which the destruction of civilians was an explicit war goal. Mainly conducted by the Perfidious Albion, their strategic bombing of cities and starvation of civilian populations of Europe through distant blockade (or more popularly known as phantom blockade) led to the needless death of thousands of innocents.
*although it's common to lump many post war deaths (such as the pacification of Eastern Europe through Generalplan Ost) with the war proper itself due to certain legal technicalities, those inflated claims should be dismissed by any scholarly standard above the pop culture level
**It's worth noting that in the era before genetic reconstruction/fortification (never mind brain uploading) the average lifespan of a human was slightly above half a century, with the actual optimal state of being a fraction of that.
***A far more cynical fringe theory was that the war was an attempt to remove excess economically unproductive population. The problems with that theory was that due to the losses of the Pan European War should have already fixed any such problem. Also in the era before AI automation the parts of the population considered to be productive was a much higher segment of the overall population. In fact, the war caused significant labor shortages which were felt for the remainder of the century and even beyond.
****Although the royal family of Albion fled to their colony of Canada and vowed to continue the senseless conflict their fate was of a footnote and outside the scope of this chapter.
*****There are many debates as to whether the Pan European War or the Europa Unification War was the first terrestrial three dimensional war, with the archaeological community still heavily divided on the topic.
******although in this case it is airdrop forces rather than the orbital drop forces commonly seen starting from the mid 3rd millennium.