[CatoRenasci]

Indeed, every well-run military establishment is always gaming scenarios against probable, possible and even unlikely enemies. It was the Russians failure to continue to do this after 1910 that resulted in the Tsar facing a decision in 1914 to either (1) mobilize against both Germany and Austria or (2) do nothing. Had Russian plans (which existed up to 1910) to mobilize against Austria, but not Germany, been up to date, that is the path the Tsar would have followed. Had that happened, the consensus of informed opinion is that a general European war would likely then have been avoided, because the Germans would not have had to put their Schlieffen Plan into effect.

[Semper Paratus]

every well-run military establishment is always gaming scenarios against probable, possible and even unlikely enemies.

A few years ago I read about the British war plan against the US drawn up before WWI.
The main thrust was an amphibious landing near New Bedford and a northward trust to isolate Eastern New England and envelope Boston.