I believe that, right from the end of World War II when they signed that agreement, there were many ethnic groups. The British government gave many of the major ethnic groups statehood, and on the basis of statehood, they all were to unite as a federal group.
If you look at their old flag, it has 14 stars—seven represent the states and seven represent the divisions. They are in a circle and the idea is that as individual groups they would become one as a federation or a union. But under the military regime it became a central government, and all the other groups have been left out.
Now they have changed the flag to one star and that one star causes a lot of dissension because this says to a lot of people, we now have a central government and the central government will control everything. The lack of the 14 stars has shown them that all their ability to be part of what's going on has been taken away.