The rear-rank men follow suit, but Nos.

2 and 1 have to turn momentarily to the left in order to get behind the front-rank pivot men--to put it more simply, they follow No.

2 in single file.
It sounds confusing, but any old National Guardsman can explain the movement in very short order.

So soon as "Squads Right" has been completed the whole column takes up the march without further word of command.
STEPS AND MARCHINGS All steps and marchings executed from a halt (except Right or Left Step) begin with the left foot.
The length of the full step in "Quick (or ordinary) time" is 30 inches, measured from heel to heel, and the cadence is at the rate of 120 steps to the minute.
The length of the full step in "Double Time" is 36 inches; the cadence is at the rate of 180 steps to the minute.
FORWARD--MARCH! At the warning command, "Forward!" shift the weight of the body to the right leg, left knee straight.

At the command, "March!" move the left foot forward 30 inches from the right; continue with the right and so on.