A video showing an American soldier sharing military information with undercover agents he believed to be al-Qaida members is expected to be among key evidence in his court martial, beginning today.

A US National Guardsman accused of attempting to provide the al-Qaida terrorist network with information about US troops strength and tactics has been formally charged and could face a death sentence.

A National Guardsman is facing charges of attempting to give information to the al-Qaida network.