Highlight the basic principles on which the United Nations Organisation (UNO) was founded

The United Nations organization (U. N. O.)
which was formed in 1945 to replace
the league of nations has the following principles. 

• The organization
  was based on the principle of sovereignty of equality of all
  members. 
• All members of the
  U. N. O. are to carry out their obligations which they have
  signed under the charter of the organization. 
• Settlement of
  international disputes by peaceful means in such a manner as
  not to endanger world Peace and security. 
• That members should
  refrain from the use of threat or force in the conduct of
  their relation in any way inconsistent with the purposes of the
  United Nations.  
• That all members will support the United
  Nations in any action
  taken in accordance with the charter of the organization.
• That all
  member states must fulfill the above aims and objectives
  in good faith.
• To ensure that non-members of U. N. O. do not act in any way that can be
  prejudicial to the maintenance of international peace
  and security.  
• That
  the United Nations shall not intervene in matters which are
  essentially within the domestic jurisdiction of members states
  except when it is acting to enforce international peace
  and security.