The widow of a solider who took his own life is calling for military families to be taught about PTSD.
- Watch the full report from Katharine Walker.
Private Reece Miller - who was from Huddersfield - served with the Yorkshire regiment and was a veteran of the Afghanistan war.
He was found dead just over two months ago - whilst on tour in Estonia.
In her first interview with the media, Fiona Miller told Calendar she could have helped him - if only she had known what she was looking for.
Now she is working with Reece's best friend to help people spot the hidden warning signs. He agrees that more support is needed for those who have seen action on the battlefield.
Now Rob is fundraising to raise awareness of PTSD and challenge the stigma surrounding mental health in the armed forces.
His challenge will see him walking from Catterick to Warminster - where Reece was repatriated.
- For more information on the fundraising challenge visit A Mile in My Boots