A member of Kurdish Peshmerga military forces looks through a device which was used by Islamic state militants, at a museum opened by the Engineering Unit of Peshmerga forces in Erbil, Iraq May 12, 2019. Vehicles, cannons, explosive devices and even military uniforms the IS fighters wore as they controlled swathes of Iraq and Syria have been are on display at the museum. REUTERS/Azad Lashkari

A member of Kurdish Peshmerga military forces looks at an artillery rocket which was used by Islamic state militants, at a museum opened by the Engineering Unit of Peshmerga forces in Erbil, Iraq May 12, 2019. This museum was inaugurated to let the Peshmerga troops and officers in our military units and other Peshmerga units get acquainted with the sorts of the Improvised Explosive Devices (IEDs) and their problems and the difficulties that faced the Engineering teams. REUTERS/Azad Lashkari

Kurdish visitors look at items which were used by Islamic state militants, are seen at a museum opened by the Engineering Unit of Peshmerga forces in Erbil, Iraq May 12, 2019. REUTERS/Azad Lashkari

A member of Kurdish Peshmerga military forces takes a selfie next to explosives and items which were used by Islamic state militants, at a museum opened by the Engineering Unit of Peshmerga forces in Erbil, Iraq May 12, 2019. REUTERS/Azad Lashkari

Items which were used by Islamic state militants are seen at a museum opened by the Engineering Unit of Peshmerga forces in Erbil, Iraq May 12, 2019. REUTERS/Azad Lashkari