A must-read article by R. Ari Kahn (link):
At the cemetery, Rav Gustman was agitated. He surveyed the rows of graves of the young men, soldiers who died defending the Land. On the way back from the cemetery, Rav Gustman turned to another passenger in the car and said, "They are all holy."
Another passenger questioned the rabbi: "Even the non-religious soldiers?"
Rav Gustman replied: "Every single one of them."