Civil War Rages in Yemen - Who?

As I mentioned previously we lived in Yemen and learned some things about the people. In this civil war, which I suppose history books will note began on May 23, there are two main sides:

• the President Ali Abdullah Saleh and his supporters (members from his tribe which is based in Sanhan, an area near the capital city of Sana'a); and
• the Al-Ahmars, sons of the real figure behind the presidential throne since 1979, Sheikh Abdullah Al-Ahmar whose tribal base is the populous governorate of Amran (north of Sana'a).

The President and Al-Ahmar belong to the same tribal confederation. They each have adherents from the same tribal confederation. (Please CNN and others stop calling them a tribe; it's a confederation - many tribal groupings.)
This is the most simplistic way to describe the current civil war, which is a power play between these two groups.