The exercise tested the army's ability to plan military operations involving NATO and UK forces.
Police found that a man had used the names of others as the authors of emails to the council.
Charlie Cano was filmed during an undercover Panorama investigation at Charing Cross police station.
A tribunal heard an ex‑Met officer’s rape jokes in a BBC Panorama undercover film were "inappropriate".
The visit to Charing Cross Hospital is the couple's first public engagement of 2026.
More than 13,000 people have been seen sleeping rough in London in the past year.
PC Sean Park was shown "expressing discriminatory and disrespectful views about Muslims", the Met says.
The phyiso, who used to work at the Royal Berkshire Hospital, supports a charity's fundraising.
Sgt Lawrence Hume was filmed calling for a Charing Cross police station detainee to be beaten up.