Britain was little even before this war:

https://www.dw.com/en/opinion-little-britain-drifts-into-insignificance/a-52183069

There are a lot of reasons for that:

https://www.theatlantic.com/international/archive/2022/01/will-britain-survive/621095/

But now it seems its complete meltdown

https://www.theguardian.com/commentisfree/2022/oct/17/economy-crisis-tories-britain-brexit-johnson-truss-us

Yet UK is poking the bear

https://news.sky.com/story/uk-accuses-russia-of-peddling-false-claims-after-moscow-blames-royal-navy-for-nord-stream-pipeline-blasts-12733132