Technically, the Joint Chiefs of Staff Committee is the highest military body; and its Chairman joint chiefs serves as the Principal Staff Officer (PSO) to the civilian Prime Minister, Cabinet, National Security Council (its adviser), and the President. The Joint Chiefs of Staff Committee deals with joint military planning, joint training, integrated joint logistics, and provides strategic directions of the armed forces. Reviews periodically the role, size, and shape of three Inter–Services, the Joint Chiefs of Staff Committee advise the civilian government on strategic communications, industrial mobilizations plans, and formulating the defence plans. In many ways, the JCSC provides an important link to understand, maintain balance, and resolve conflicts in the civil military relations between military and political circles. In times of peace, the Joint Chiefs of Staff Committee's principal functions are to conduct planning of civil–military input; in times of war, the Chairman acts as principal military adviser to the Prime Minister in the supervision and conduct of joint warfare.