New Afghan President Vows to Unite Country

The video discusses a ceasefire agreement in Eastern Europe aimed at halting advances and creating a buffer zone between government troops and Pro-Russian rebels, following a conflict that has claimed around 3000 lives. In Afghanistan, the president-elect Ashraf Ghani Ahmadzai pledges to work for peace and transparency in a unity government. Meanwhile, the Islamic State militant group threatens to fight against a US-led coalition, urging global Muslims to target civilians from coalition countries. President Obama has gathered international support to combat the extremists.

What does the Islamic State militant group call on Muslims to do in the new audio recording?

What has President Obama done to help defeat the extremists?