K-2 (Campaigns of the Second World War) is a system of games published by the polish company Taktyka i Strategia. These games are operational scale ones, using division and brigade units, with maps covering whole countries or major part of them. Instead of the typical hex maps, these games are divided into areas. Infatry may move one area per turn, while mechanized, armored units and cavalry have bigger range.
Games are covering whole campaigns, usually two weeks-month long with one turn for each day.