Tiger Im Schlamm
It is not that common to have manga based on historical events. (Maybe I just talk a bit on the story. It is about Otto Carius, a German panzer commander who destroyed 150+ tanks during World War 2. The most notable was his campaign in Estonia where with 2 Tiger tanks he beat off Russian counterattacks.) It is funny that Miyazaki uses pigs to represent the characters and makes the story less bloody. There were times when the artist showed his own frustration due to the never-ending counterattacks and his constraints to finish the story within the few episodes. Nevertheless the maps and the technical aspect were really nicely drawn, with the tense atmosphere, actions, flow of events and humours nicely blended together.
You can find the online version here.