The army tested the new communication system last month.
The new communication system was tested by the army last month.
The commander gave the orders yesterday.
The orders were given by the commander yesterday.
The soldiers cleaned the barracks yesterday.
The barracks were cleaned by the soldiers yesterday.
Soldiers follow strict regulations during training.
Strict regulations are followed by soldiers during training.
Medics treat wounded soldiers immediately.
Wounded soldiers are treated by medics immediately.
The officers organized the briefing last week.
The briefing was organized by the officers last week.
The army inspects the vehicles every morning.
The vehicles are inspected by the army every morning.
The commander reviews the mission reports every morning.
The mission reports are reviewed by the commander every morning.
Engineers repair the tanks after every mission.
The tanks are repaired by engineers after every mission.