Did ending the Anglo-Japanese Alliance weaken Britain's position?

Was ending the Anglo-Japanese Alliance a mistake for Britain, and how much did it contribute to Japan's isolation?

Its loss contributed substantially to Japanese isolation and removed a possible restraint on expansion, but retaining it risked a later breakdown and obstructed Britain's desired relationship with the United States.

The alliance's demise is treated as a substantial contributor to Japan's isolation in the 1930s. Keeping it alive might have restrained attacks on British possessions, although that outcome remains counterfactual. British willingness to end the arrangement is linked to growing doubts about Japanese behaviour. A later breakdown could also have left Britain facing Japan from a weaker position. Continuing the alliance would have complicated the naval agreements and closer relationship with the United States that Britain wanted, particularly as American suspicion increased after the First World War.