According to colleagues Lance Corporal Tasker and Theo were inseparable. Their working partnership was also hugely successful.
Theo located 14 home-made bombs and hoards of weapons in just five months.
The figure is the most any arms and explosives search dog in Afghanistan has found to date.
More top news
Scientists find a cluster of spinal neurons integrate sensory data and unconsciously adjust muscles to maintain balance and avoid slipping.
Billionaire businessman Stefano Pessina has said the Labour leader's economic plans are "not helpful for business or the country."
British scientists believe their research may help to explain the missing material that makes up more than 80% of the universe's mass.