Why different Russian views of war with Ukraine are a concern for Putin

Geopolitical Analysis - The analysis suggests that the Russia-Ukraine war is causing significant changes within Russia [1] - Pro-war Russians believe Russia has invested heavily in the war and must continue [2] - Putin needs to ensure returning soldiers feel victorious to maintain his power [2][3] - Dissatisfied, war-hardened veterans could pose a threat to Putin's security [3][4] - Putin is likely concerned about the potential for internal unrest if the war ends without a perceived victory [4]