Which of the following formations is used for guerilla exercises?

The choice of a mile and a half run as a formation used for guerilla exercises is correct because it emphasizes endurance, agility, and overall cardiovascular fitness, which are crucial components of guerilla training. Guerilla exercises often focus on quick, intense bursts of activity interspersed with longer endurance tasks, simulating the unpredictable and demanding conditions of real-life scenarios.

In contrast, the other options primarily focus on strength or specific muscle groups rather than the comprehensive fitness that guerilla exercises aim to develop. For example, squat thrusts mainly target leg and core muscles, while team relays enhance teamwork and speed but do not capture the same endurance aspect found in long-distance running. Pull-ups, although excellent for upper body strength, do not align with the broader endurance and stamina focus typically required for guerilla-style workouts. Thus, the mile and a half run stands out as the most fitting choice.