There can be only 1 objective of war - victory. The war is won when no enemy is left. So, objective of all war is to ensure that no enemy is left. If it is a minor skirmish, then it does not matter as the relevance is minimal
My God ! Since the inception of Society (organised / group living), human have been engaged in billions of War or "organised use of violence" against each other Destruction of the other has not always been the aim / end of the Wars. Total destruction or total wars have always not been the objective of war.
The aims of war always is to achieve an intended objective. Application of military means is just to inflict a degree of violence on the opponent thereby making the enemy or opposite side yield to an "end state" as desired such as accepting slavery, suzeirnity, subordinate status, enter into an alliance, surrender a lady (helena or Sita or Draupadi or Padmavati). give in to an intended order (WWI and WWII), control of resources, overcoming / supression of economic activities, hegemony or end of an activity - Jihad, Conversion, terrorism, infiltration, insurgency etc. The aim always is to achieve an "end state" - some say to establish peace and many say to break down enemy's will to fight.
There can be numerous aims of war
Objectives of warfare are those threatening which the cores of enemies existence or continuance gets threatened therefore forcing him to agree to an end state. those could be :
Enemy military force (and his ability to wage a war.)
Enemy population to annihilate, subjugate, enslave or transport or be used as a resource.
Enemy leadership - political, military, religious or ideological.
Enemy territory.
Enemy resources.
Enemy vital centers of communications, water, ports etc.
Enemy's means and resources of well being.
Therefore, War is an extension of state policy intended to be achieved by application of "coercion", "force - mainly military force to inflict violence" and other means to achieve intended aims.
Can the Pundits tell me what Indian traditional thinking on the subject of War is ? What does Indian wisdom say on the aims and objectives of war - beside capturing milking cows to be gifted to ones Guru ! To avenge and restore honour of Draupadi or Sita ? What if Ravana had agreed to return Sita with honour ? Would there be a war? Perhaps no, but it is safe to assume that it would have not been possible with the deployment of "Ram Sena" and a "Threat of War".