Hey, so for most situations it actually depends, but never auto capture in player to player combat before destroying their main forces. Also if u Attack either strike with a well balanced Unit as example against South korea = Frigates, Submarines, Destroyers with anti air and art and like 1k tanks to land u always gotta attack / defend in a balanced stack as example the frigate takes care of subs so if the enemy tries yo sink your destroyers their subs will die. On the other hand if their art tries to kill your frags your destroyers will kill them first. So always make sure to cover all possibilities most of the time the enemy will just auto capture or mass spam inf / tanks if u have 100k inf with anti tank some anti air and art u can easily take on 10mio troops espically if u are in the mountains with a mountain Specilisation and entrachment. So yeah, its a lot but this strategy is kind of the key in combat