What is the main purpose of the military? To deter, fight and win wars both at home and abroad. As I have already outlined in the previous two blogs, Rules of Engagement (ROE) are the critical lynchpin, or key interconnecting devices, between the two separate and different political and military spheres of a nation during any armed conflict. ROE are binding political-military-legal orders given to national military forces by civilian national government officials, which clearly limit or restrict what the military can do on behalf of the nation, and in the name of the government, while actively deployed in a theatre of armed conflict. National militaries are subordinate to and accountable to obey these instructions or commands of their national civilian government because, in most countries of the world, national armed forces are the military servants of the civilian masters in government, who in turn are also themselves the temporary chosen representatives and servants of their citizen nation of people. As military servants of elected governments, then, and because of the changing nature and short-term tenure of governments comprised of various and often rival political parties and ideologies, especially in liberal democratic countries, national armed forces must officially be strictly apolitical and non-partisan: loyal to the Nation-State, the National Constitution, the national government, and the nation of people they exist to protect.

This blog will discuss these critical issues, and then examine the role of the military in each State today in the modern world. It will subsequently discuss the primary purpose of the military in every Nation-State, as well as the three kinds of wars national militaries usually engage in historically and today – (1) war at home to protect the sovereign State and the population of the nation; (2) war abroad in defence of critical national security interests and concerns; and (3) war abroad to defend foundational and core principles, values and beliefs.