It’s 100 years today since a political assassination in the Balkans set in motion the Great War which, in one form or another, has continued ever since. In destroying themselves, and millions of their subjects, the German, Austrian and Russian empires brought forth Nazism and Bolshevism, which killed in the tens of millions. After 1945, the killing mostly stopped in the developed world, replaced by the threat of instant nuclear annihilation, which remained ever-present for decades and has by no means disappeared. Instead, the War moved to the Third World, and a multitude of proxy conflicts. The fall of the Soviet Union saw the renewed outbreak of the War in Europe, most bloodily in Yugoslavia and more recently in Georgia and Ukraine.
Meanwhile, the British and French imperial War plans, embodied in the (secret) Sykes-Picot treaty and the contradictory assurances offered to Jews and Arabs in the Balfour declaration and the McMahon-Hussein correspondence[^1], continue to work their evil consequences long after all the original participants have gone to their graves. Syria, Iraq and Israel-Palestine are all products of the Great War, as is modern Iran (the product of a revolution against British and later American suzerainty imposed after 1918).
And, after 100 years, nothing has been learned. The architects of the most recent catastrophe in Iraq are still respected commentators, as are the many historians and others who defend the conduct of the British-French-Russian imperial alliance in the 1914-18 phase of the Great War (most British and French apologists ignore or explain away the alliance with the most oppressive European empire of the day, but I imagine there are now Putinist historians hard at work producing defences of Tsarist war policy).
More fundamentally, despite 100 years of brutal and bloody evidence to the contrary, the idea that war and revolution are effective ways to obtain political ends, rather than catastrophic last resorts, remains dominant on both the right and the left.
Perhaps in another 100 years, if we survive that long, the world will have learned better.
[^1]: In addition to these, there was the secret Constantinople agreement with the Tsarist empire, and the Treaty of London and Agreement of Saint-Jean-de-Maurienne with Italy, none of which came into effect. These secret deals (and similar agreements made by the Central Powers) make it clear that all the major participants in the Great War were committed to the pursuit of imperial expansion, even as they all pretended to be defending themselves against aggression and pointed to the crimes of their enemies as justification for their own.