How did the between two communities in Sri Lanka became Problem and effected the development of Sri Lanka?

The distrust between the two communities turned into widespread conflict. It soon turned into a CIVIL WAR. As a result thousands of people of both the communities have been killed. Many families were forced to leave the country as refugees and many more lost their livelihoods. You have read (Chapter 1 of Economics textbook, Class X) about Sri Lanka’s excellent record of economic development, education and health. But the civil war has caused a terrible setback to the social, cultural and economic life of the country. It ended in 2009.