This article is devoted to the study of the consequences of the military conflict in Eastern Ukraine and the annexation of the Crimea for environmental security. The impact of the conflict tends to occur more gradually, through the destruction of key infrastructure and the breakdown of supply chains. In the case of environmental damage, this has the added effect of diffusing responsibility and accountability. There is an obvious need to develop a strategy of minimizing the environmental impact of the conflict for the whole territory of Ukraine without waiting for the possible ways of resolving the conflict.