Odd question about military marching pace

[PEEDYC]

In the Royal Marines we called this speed marching but we jogged for far longer then broke into a fast paced march. Now a nine mile speed march in full fighting kit is undertaken in less than 90 minutes as part of the Commando course to gain the coveted Green Beret.

The purpose has not changed :- To get a body of men from A to B in the shortest time possible and still have the energy for a fight at the end.

[Jock Scot]

In the Royal Marines we called this speed marching but we jogged for far longer then broke into a fast paced march. Now a nine mile speed march in full fighting kit is undertaken in less than 90 minutes as part of the Commando course to gain the coveted Green Beret.

The purpose has not changed :- To get a body of men from A to B in the shortest time possible and still have the energy for a fight at the end.

Speed marching RM style?Too tough for me to even contemplate!