Troops on patrol at Honduras-El Salvador border In Honduras, bus drivers crossing the border into El Salvador are often forced to pay the violent Salvadoran gang, Mara Salvatrucha, each month to protect their lives. But with the deployment of military and police forces from Honduras, El Salvador, and Guatemala, which make up the Northern Triangle, those governments are hoping to control gang movement, and the trafficking of drugs, arms and people along their borders. IMAGES AND SOUNDBITE