How far off the deck is the ball of the foot lifted when marking time?

When marking time, the proper technique requires the ball of the foot to be lifted approximately 2 inches off the ground. This specific height allows for effective movement while maintaining stability and balance, which is essential in a military environment. It ensures that the movement is pronounced enough to be noticeable without being excessive, which could disrupt the timing and rhythm necessary for marching and drill movements. Knowing this height is crucial for Marines to perform drills correctly, as it reflects attention to detail and adherence to standards expected in military operations.