I was confused by this also, especially since it seems unlikely to be able to locally procure paper in the middle of a warzone. However I do think it probably.m

I was confused by this also, especially since it seems unlikely to be able to locally procure paper in the middle of a warzone. However I do think it probably.makes logistical sense since you can pre-stock the paper (e.g. on a ship) or ship it with a much higher-latency mode of transportation (e.g. ocean freight).