I noticed when I played Hearts of Iron some years ago, if you surrounded an enemy army, and therefore cut off its supply, it quickly degraded.
This can change tactics and outcomes significantly. It is also realistic and historical to the WWII era. Many WWII operations were designed to encircle enemy forces; e.g., there were several encirclements in operation Barbarosa, operation Uranus (Stalingrad), there was a near encirclement in the Normandy breakout (Falaise), Arnhem bridge, etc.
Mechanically this could function by either (A) requiring units to be able to trace a line through owned territories to a friendly city (sea lanes would count as owned for this purpose for all players), or, alternately, (B) units would need to trace a line to a friendly city through any territory, owned or not, as long as the line does not pass through enemy units.
Units that are not supplied would slowly degrade, losing condition until they are eliminated or are supplied, in which case the degradation stops.
I suspect it would involve too much programming changes. But, anyway, it would be cool, and make for a new tactic that could be used, and it would add realism.
This can change tactics and outcomes significantly. It is also realistic and historical to the WWII era. Many WWII operations were designed to encircle enemy forces; e.g., there were several encirclements in operation Barbarosa, operation Uranus (Stalingrad), there was a near encirclement in the Normandy breakout (Falaise), Arnhem bridge, etc.
Mechanically this could function by either (A) requiring units to be able to trace a line through owned territories to a friendly city (sea lanes would count as owned for this purpose for all players), or, alternately, (B) units would need to trace a line to a friendly city through any territory, owned or not, as long as the line does not pass through enemy units.
Units that are not supplied would slowly degrade, losing condition until they are eliminated or are supplied, in which case the degradation stops.
I suspect it would involve too much programming changes. But, anyway, it would be cool, and make for a new tactic that could be used, and it would add realism.