On Wednesday, the parliament of Iraq's largely autonomous Kurdish region voted overwhelmingly to send a contingent of peshmerga fighters to help the Syrian Kurds defending the town of Kobani from an ISIS siege. The obvious route for the peshmerga fighters is through Turkey, which offered passage to Iraqi Kurdish fighters earlier this week, though the details are vague.This will be the first time the Iraqi peshmerga have been deployed outside of Iraq, though Syrian and Iraqi Kurds worked together in August to create a safe passage for ISIS-hunted Yazidi refugees.