Why HMS Queen Elizabeth deployed to the United States

Why was HMS Queen Elizabeth's deployment to the United States important?

It supported carrier training and integration while Britain's own F-35B force and training facilities were still developing.

The deployment demonstrated British carrier capability to an important ally, but it also served a practical training need. Britain had not yet established a complete domestic carrier-training system. Its available F-35B force was also too small to sustain the full training cycle independently. Working in the United States therefore helped develop aircraft, ship, and personnel integration while the national system matured.