The relationship between country itself internal civil war and human welfare6.3.1How internal civil war influences human welfare? Nowadays, a growing number of economists and political scientists often ask this simple question: Why there is so much civil wars in any country itself the world? Poverty is commonly held to be a leading cause of internal wars. Indeed, it has close relationship between low per capita incomes and higher propensities for internal war's countries. Such as developing country Africa, it has many times more internal wars. So, it brings poverty and low living standards and poor health and poor air and water pollution environment to let African to live. Then, hunger and disease will also be caused easily in Africa. However, internal civil wars also bring negative influences to developed countries, such as Australia, US Canada, UK, Japan, Korea etc. countries. The reason is because the internal civil war counties which refugee flows will choose to immigrate to those developed countries. Such as developing countries, South Korea and Africa and India, there have many times more internal civil wars .So it brings poverty and low living standards and poor health and poor environment to let African, South Korean, Indian to choose to live to these developed countries. Then, hunger and disease will be caused easily in developing and developed both countries, due to developed countries permit these developing countries' refugee who immigrate to themselves countries to live from internal civil war counties refugee immigration easily.Moreover, internal civil war can also influence developed countries, such as Australia, US, Canada, UK refugee flows will choose to immigrate to these developed countries lawlessness as well as the illicit trades in drugs, arms and minerals will appear into these developed countries neighboring conflict zones . The destructive consequences of internal civil welfare may be a great as to potentially be a factor in the growing gap between the world's richest and poorest nations.6.4Can internal civil wars influence the country's long run economic development?Has it relationship between long run economic growth and internal civil war? Some economists recommend that it focuses on impacts on capital and population, the basic of economic production and whether the internal civil war country is possible rapid recovery as well as the internal civil wars cause economic impacts which can also been found for human capital, including measures of education, nutrition, health and productivity to the internal civil war countries. What are internal civil war negative impacts? Some behavior economists had experimented one interesting research to indicate that any internal civil war country will reduce human resource productivity growth, will reduce overall GDP in possible. Their research indicated the internal war armed group leaders are most motivate citizens to be soldiers for their side. Participation becomes easier to motivate the lower is citizen's opportunity cost of fighting . So there models predict that the amount of citizens' time devoted to fighting increases as the returns to fighting rise relative to the returns to reduce human resources supply to society to assist enterprises to raise any productive activities.