Nationalism isn't the main cause of war today (16 oct 16...18 oct 16)
A common critique of nationalism is it leads to conflict. Yet the nationalist politicians of East and West are cooperating now, and promising to cooperate more when they are in power. Petra - Orban - Le Pen - Farage - Trump - Putin. While the "internationalism" of the liberal establishment consists of warmongering in favour of Saudi-backed Islamic terrorists against nuclear-armed Russia, actively supporting the Saudi attack on Yemen , and flooding Europe with "refugees", some of them from some of these disasters.
1. However, in Iraq, the Western countries support Shi'ite sectarian militias against Sunnis. Whenever you think it's a conspiracy, the evidence shows it's a series of cockups.