Investment - Siege

In its simplest terms, investment is what most people think of when they hear the word “siege”: cutting off access to and escape from a fortification. Interdicting lines of supply ensures that no food shipments can make it into the castle; the garrison is thus limited to the supplies on hand at the moment the investment was laid. Interdicting lines of communication ensures that the garrison can’t call for help, and must stand or fall on its own abilities.