This probably is an appropriate time to Godwin the discussion and point out a certain Austrian/German leader's very different ideas were also shaped by his negative experiences of a world war. Veterans react differently even to similar experiences and cover the full range of positions on war from gung ho militarism to unapologetic pacifism. Perhaps military experience lends them a more informed perspective on what the realistic outcomes of a war might look like, but it's no inoculation against militarism.

In the United States, we specifically block appointment of officials to civilian office that have recently left military service with the National Security Act of 1947 [0]. A waiver from Congress is required to grant exception to this rule, and the first time that waiver was ever sought and granted was just a few years ago in 2017 for General James Mattis to serve as Secretary of Defense only a few years after retirement from the Marines.

[0] https://en.m.wikipedia.org/wiki/National_Security_Act_of_194...

It is probably an argument for having diverse views in politics in general, and beyond quick reactions, limiting the power to declare war, or engage in aggression more broadly, to more control by deliberative bodies

Just as Eisenhower warned of the growing influence of the military-industrial complex in 1960.

This is not always the outcome with veterans though, and veterans experiences are not uniform.

They are, however, informed by experiences in uniform.