Alternate History Screw

In the parlance of Alternate History Fandom a "Screw" is where a single nation, culture, political theory, or philosophy is singled out and disadvantaged, typically at the advantage of its contemporaries. Perhaps the Spanish Empire has not just lost the Philippines, Cuba and Puerto Rico to the United States but they also lost the Canaries and the Western Sahara! Maybe Mexico doesn't lose just the Southwest but everything north of Mexico City. Or perhaps the Romans fall in both East and West around the same time!

There is still a consensus on what constitutes a Screw. Is a Lesser America timeline where the Confederates end up winning the Civil War a Screw, or would America have to be be contained at the Appalachians? But if America consists of a small portion of what it is, the timeline probably is an Alternate History Screw.

Compare and contrast with Alternate History Wank, the inversion of this trope.

Examples of Alternate History Screw include:

Film

The Union states lost the American civil war in CSA: Confederate States of America, to the benefit of the Confederacy and Canada.

Literature

In How Few Remain, The United States is disadvantaged by not finding General Lee's special order 191, leading to their loss in the American Civil War.
In Roma Eterna, the Jewish people are disadvantaged by being prevented from leaving Egypt, leading to a stronger Rome.
In Stars and Stripes Forever by Harry Harrison, the British Empire is disadvantaged by ending up at war with the American Union and the American Confederacy.
In the Red Stars duology by Fyodor Berezin, Nazi Germany is disadvantaged by delaying Operation Barbarossa, leading to a crushing USSR victory much faster than in our timeline.
The Mongol Empire is disadvantaged in The Cross-Time Engineer by a single man from the future who conducts a One-Man Industrial Revolution just a decade before their arrival.

Video Games

Homefront features an economically messed up United States and China, to the benefit of North Korea who takes over much of Asia and part of the United States.
In Freedom Fighters the first nuclear weapon is deployed by the USSR against Berlin, to the eventual detriment of the United States when an emboldened USSR invades.

Web Original

In Vive La Francewank of The Strangerverse, Russia is disadvantaged by the events of the story.
In Superpower Empire China 1912 Yuan Shikai dies from kidney failure four years earlier than in real life. Russia also looses eastern Siberia.
In A Central East, Russia and China both suffer more from World War I.
Germany loses World War II far more quickly in A Greater Britain than in real life.