The clash between Communism and Islam in the Soviet Union pitted two socio-political systems against one another, each proclaiming ultimate truth. This study examines the first decades of the struggle in Central Asia (1917-1941), where an ancient religious tradition faced an aggressive form of secular modernity. The Soviets attempted to break down Muslim culture and remold it on Marxist-Leninist lines. Central Asians played complex roles in this effort, both defending and attacking Islam, but mostly trying to survive. Despite Stalin's totalitarian aims, the Soviet regime in Central Asia was often weak even into the 1930s, and by 1941 the opposing systems had reached a standoff. The Communist Party pursued the destruction of Islam in stages, which reflected the development of Soviet political strength. The party developed propaganda that both attacked Islam and extolled the new Soviet culture. However, the entire process was plagued by inefficiency, ignorance, and disobedience. By 1941, the Communists had inflicted tremendous damage, but customs such as circumcision, brideprice, and polygyny had merely gone underground. Central Asians had not exchanged the fundamental identity of Muslim for Marxist-Leninist. Keller utilizes documents from Moscow and Tashkent, including the now-closed former Communist Party Archive of Uzbekistan.

During the Second World War, as the Soviet Red Army was locked in brutal combat against the Nazis, Joseph Stalin ended the state's violent, decades-long persecution of religion. In a stunning reversal, priests, imams, rabbis, and other religious elites--many of them newly-released from the Gulag--were tasked with rallying Soviet citizens to a "Holy War" against Hitler. To the delight of some citizens, and to the horror of others, Stalin's reversal encouraged a widespread perception that his "war on religion" was over. A revolution in Soviet religious life ensued: soldiers prayed on the battlefield, entire villages celebrated once-banned holidays, and state-backed religious leaders used their new positions not only to consolidate power over their communities, but also to petition for further religious freedoms. Offering a window on this wartime "religious revolution," God Save the USSR focuses on the Soviet Union's Muslims, using sources in several languages (including Russian, Tatar, Bashkir, Uzbek, and Persian). Drawing evidence from eyewitness accounts, interviews, soldiers' letters, frontline poetry, agents' reports, petitions, and the words of Soviet Muslim leaders, Jeff Eden argues that the religious revolution was fomented simultaneously by the state and by religious Soviet citizens: the state gave an inch, and many citizens took a mile, as atheist Soviet agents looked on in exasperation at the resurgence of unconcealed devotional life.