Upholding “blasphemy”

A journalist who wrote about the role of women in Afghanistan, Sayed Perwiz Kambakhsh, remains in jail on charges of blasphemy and defaming Islam while a Council of Mullahs says he should be sentenced to death, said Reporters Without Borders.

“The calls for the death penalty for Kambakhsh highlight the growing influence of fundamentalist groups on intellectual debate,” the organisation
said. “The blasphemy charges are an ill-disguised attempt to hide the desire of the local authorities to restrict press freedom.”    
Someone enlighten me please: what is Canada’s goal, and why are Canadian soldiers dying and being injured, in Afghanistan?