That's a good metaphor, but I'm not a fan of Haiku's so I haven't got anything constructive to say... Except, I noticed it could be flowing better...I'm not exactly sure how...
Also, maybe you could include the 'Soldiers fall everyday kinda like leaves' in the poem except in this phrase:
Soldiers fall fall everyday like leaves
So that people understand more about that ^^
I liked this. I'm just getting into the Haiku world of poetry myself, but I'm not so good. Look up my work; Snowdrop, and you'll see what I mean.
I liked the reference to the soldiers; it was what I would call deep and hard hitting. I think in those few lines you could've made the leaves seem more element; Autumn is beatiful afterall.
An arrow can only be shot by pulling it backwards. So when life is dragging you back with difficulties, it means that life's going to launch you into something great, so just focus and keep aiming. — Unknown