Final answer:
The command to recover from PT formation in a military or structured physical training context is 'Fall out', allowing individuals some freedom to relax, move, or stretch in the immediate area.
Step-by-step explanation:
The command to recover from the Physical Training (PT) formation is 'Fall out'. When this command is given, the individual can relax in a standing position, move around or stretch but must stay in the immediate area. This command is different from 'At ease', where movement is more restricted, or 'Dismissed', which means personnel are free to leave. The command 'Attention' is used to bring the individuals to an alert position, ready for further instructions and is not used for recovery or relaxation.