Final answer:
The question relates to Military Science and concerns drill commands used to manage physical training formations, specifically how to transition from the Extended Rectangular PT formation back to a standard arrangement or position of attention in a disciplined manner.
Step-by-step explanation:
The query about 'Recover from the Extended Rectangular PT formation commands' pertains to Military Science, specifically within the realm of Physical Training (PT) drill commands.
Drill commands are critical for military order and efficiency, particularly during physical training exercises. The extended rectangular formation is a particular PT formation that allows for maximum movement and facilitates an organized structure for a large number of participants. To recover from this formation means to return to a default or starting formation, typically the position of attention or a standard rectangular formation.
Commanders or drill sergeants will give specific vocal cues to signal this transition. It is important for all participants to know these cues and respond promptly to maintain discipline and synchronization.