In the case of R (Smith) v Secretary of State for Defence the Court of Appeal held that sending out soldiers without adequate protection could be an actionable breach of their human rights. A newspaper report can be found at: http://www.guardian.co.uk/uk/2009/may/18/british-soldiers-human-rights-battle
The full judgment can be read at http://www.judiciary.gov.uk/docs/judgments_guidance/sec-state-defence-queen-smith-others.pdf