You are conflating several different events in a way that makes it hard to untangle what's actualy happening.
1) UK finance minister visit,
.
2) US (American, not British) carrier deployment,
.
3) UK (British, not American) carrier deployment,
, not today.
And note the #3 deployment was announced way back in 2023. There's no connection to the finance minister unless you read way too far into a news piece which happened to be published today, about an event happening months away which was planned years ago.