Great war TV shows aren’t easy to make for several reasons. Firstly, the war genre demands ultra-realistic portrayals of any historical events depicted onscreen, which are usually costly to produce and often don’t suit character-driven narratives. Then there’s the question of how a series can strike the right balance between depicting military combat and developing characters worth rooting for. Large-scale action scenes shrouded in explosions and punctuated by gunfire may be exciting to watch, but they’re very expensive to do well, and don’t tend to engage audiences for sustained periods across an entire series of episodes. Meanwhile, the horrors of...