what are the main bases to maintain unity in the society and the nation
The base word of "national" is "nation."
No they are not. A span of command is referring to how many employees are under you and how far your knowledge base has to be to maintain them. For example, if you have twenty employees in one area then your span of command is narrow, yet someone who has two hundred employees has a vast span of command. The unity of command is when a subordinate breaks the chain of command by trying to go to another supervisor but they maintain the chain and send them to the proper person. Kind of like when a child asks one parent for something but hears the wrong answer so goes to the other one...when both 'parents' maintain a unity that is a unity of command.
nation
Nation
The base word for maintenance is "maintain."
who is designed to maintain an dequate base of qualified and trained professional
The base word of international is "nation."
Religious History, along side Secular History, has proven that true "religion" has always been the core base as to whether a Nation will act, or will be acted upon, sanely or not.
Garrison
society
social
If Beta is infinite, then the current gain will be unity.