By Emily RoseJERUSALEM, Jan 16 (Reuters) - Israel is grappling with a dramatic increase in post-traumatic stress disorder and suicide among its troops after its two-year assault on Gaza, precipitated by the October 7, 2023, Hamas attack on southern Israel.Recent reports by the Defence Ministry and by health providers have detailed the military's mental health crisis, which comes as fighting persists in Gaza and Lebanon and as tensions flare with Iran.