The official 's order was questioned in recent days as concern mounted over the situation . Taliban leader Sheikh Abdullah Omar has purportedly released a statement . In the statement , he says fighters are having success infiltrating Afghan forces . ` ` Green - on - blue '' attacks have been carried out by Afghans in security uniforms .
NATO official 's order was made in recent days as concern mounted over the attacks . Taliban leader Mullah Mohammed Omar has purportedly released a statement . In the statement , he says fighters are having success infiltrating Afghan forces . `` Green-on-blue '' attacks have been carried out by Afghans in security uniforms .