The Bolshevik Revolution through the Great Patriotic War -- a 28-year Crisis Era?
Writing in and largely about the United States, Howe and Strauss have of course said comparatively little about the largest political entity in geographic scope (Russia and the Soviet Union, depending upon the time). Most of us are far from experts on Russia (I included among them), but in the absence of any definitive statements about whether the Bolshevik Revolution and Russian Civil War constitute the Crisis in entirety, whether the Crisis includes the forced collectivization of the Soviet Union and the Great Purge, and whether the Great Patriotic War is another part of the Crisis.
I am satisfied that the Russian Civil War had a fair analogue in the American Civil War in that Russia was extremely polarized in its politics into intolerant, exclusive, militant camps... but with less gentlemanly character. The opposing White and Red sides sought to annihilate each other. War Communism failed, and New Economic Policy (NEP) afforded a short-lived respite before Stalin consolidated power and began a forced collectivization of agriculture. In the Great Purge, Stalin turned on many of his one-time allies. Stalin ran out of rivals to kill, but in 1941 began Operation Barbarossa. With the arguable exception of Poland the Second World War was waged with more ferocity than anywhere else.
The Soviet Union might have been tending away from a Crisis... but Hitler imposed a Crisis from elsewhere.
The greatest evil is not now done in those sordid "dens of crime" (or) even in concentration camps and labour camps. In those we see its final result. But it is conceived and ordered... in clean, carpeted, warmed and well-lighted offices, by (those) who do not need to raise their voices. Hence, naturally enough, my symbol for Hell is something like the bureaucracy of a police state or the office of a thoroughly nasty business concern."
― C.S. Lewis, The Screwtape Letters