I want to study on the topic of conflict and disaster related topic for the thesis of m-phil or phD level. So in want to select topic for the research.
I suggest you select the topic that interests you and easy to find good research publications, books, and data (primary or secondary according to your research).
TOPIC: You can work on "Conflict resolution or management techniques through communication"
Details: Now here are a few things to consider in this topic,
organization matters you are collecting data (public sector, military, education, etc.) consider Linear Models of Communication ex, Aristotle's model of communication
For private organizations, you can use the Johari Window Model.