The rise of Hitler and Tojo of course put an end to that sort of thinking.
The demise of the demise of the British Empire was a tragedy from which the world is still suffering.
“United States Army and Navy in the late 1920s and early 1930s to estimate the requirements for a hypothetical war with the United Kingdom”
England tried in 1812 and in 1860 to undo the American independence. Then in WWI we were neutrals. While we hear all about the Lusitania and German subs attacking US ships trading with Britain, we are never told how the Royal Navy absolutely warned us that any American ship proceeding to Germany would be sunk.
Britain made all kinds of hostile demands on us during WWI. Then when we entered they wanted direct control over US soldiers and intended to use them as replacements in the British Army. Thankfully Pershing said that was not going to happen.... period.
In the naval treaty of the 1920s, Britain insisted on superiority over the US. No, despite all the special relationship talk, the UK does not have a deep abiding respect for American independence and freedom. They have undermined it at every chance.
In the 1920s the Brits absolutely saw us as an adversary. The dirty truth about WWI is that the Germans were not the bad guys. The Brits were flatout evil and fighting to preserve the economic empire. And the French were beaten to death in a fight for survival.
Its a common mistake to assume the Germans of WWI were the Germans of WWII. They were polar opposites in innocence and guilt. One think now widely known. The average German soldier had the right to vote. The average British soldier could not. “Making the world safe for democracy”....sure.
The British considered Soviet Russia and France their biggest problems in the 1920’s. A third British-American war was always possible in the 19th Century, but very unlikely after WWI. Governments make war plans for every possibility but that does not mean that they are at all likely.
Clearly the Navy and Army did not have enough to do between the wars. Totally absurd plans.