An Austrian army instructor (centre) is watched by Burkinabe soldiers as he demonstrates techniques while taking part in a training exercise at the Kamboinse general Bila Zagre military camp near Ouagadougou, yesterday, during a military anti-terrorism exercise. Some 1,500 African, American and European troops began manoeuvres in Burkina Faso, western and northern Niger on April 11, to train against terrorist threats hovering over these regions.