You could make a case for 'The Sun Also Rises' by Hemingway. The protagonist, Jake Barnes, is a wounded veteran. While the novel is about the Lost Generation in Paris and Spain, the war's daily trauma is the invisible engine of everything. The way the characters drink, talk, and interact is a direct continuation of their coping mechanisms from the front. The 'daily life' of the soldier is now the daily life of the exile, filled with the same restless energy, camaraderie, and search for meaning that once filled the trenches. It's a poignant, indirect answer to your question.
Has anyone mentioned 'A Long Long Way' by Sebastian Barry? It follows Willie Dunne, a young Irishman in the Royal Dublin Fusiliers. The home front conflict is huge here—the 1916 Easter Rising happens while he's on leave, forcing him to confront where his loyalty truly lies: to the British army he serves or to a burgeoning Irish republic. The streets of Dublin become a second front. His family is torn apart by the political divide. The novel is devastating because Willie is literally and ideologically shot at from both sides, making his homeland as dangerous and confusing as no man's land.