The document discusses the environmental impacts of several wars and conflicts from the 20th and 21st centuries. It describes how the Rwandan civil war in 1994 led to over 2 million refugees, putting pressure on the country's limited resources and destroying gorilla habitats. It also discusses how the Somali civil war encouraged overfishing that was unsustainable and harmed local ecology. The Vietnam War involved extensive bombing and use of toxic Agent Orange that polluted soil, water and vegetation, resulting in health issues for humans and wildlife.