Giuseppe

The short answer is NO.
I believe one of the reasons war is perceived as inevitable is that throughout history, war has been used by the establishment as "instrumentum regni" (just like religion), that is a tool to maintain the socio-political status quo. In modern time, the economic component, the military-industrial complex, has made the warmongering even more powerful.

The link between war on the one hand and patriotism and ultimately self-preservation on the other is ancestral and bleeds the socio-political domain into primal biological urges. However, I find it perfectly believable that this connection arose from human history (the preservation of the first agrarian organized societies) rather than biological evolution.