United Nations, Sep 21 (ANI): US Secretary of State John Kerry has said that Iran could play a crucial role in defeating the Islamic State group. Even while the US refrained from inviting Iran from joining the US-led military coalition, Kerry said that Iran could help "take out" IS. Kerry said in a meeting of the United Nations Security Council that it was about taking out an entire network, decimating and discrediting a militant cult masquerading as a religious movement. He added that there is a role for nearly every country in the world to play, including Iran.