It’s Yom HaZikaron — Israel’s Memorial Day. And as Israel’s longest post-independence war drags on in Gaza, it’s time we talked about one of the most devastating but least acknowledged costs of Israel’s militarization: The vast impact of widespread post-traumatic stress disorder. My life has been shaped by a personal tragedy I attribute to PTSD: my father’s death by suicide, when he was 40 years old, and I was 16. He was never diagnosed, after s…