For former military veterans/personnel in the post 9/11 era who have become politicians in your country, has their military career helped their campaigns or did it hinder them somehow?

I say post 9/11 as the high likelihood of military vets have been serving in warzones and not just draftees doing guard duty or deployed on a UN mission. Say you were formerly serving the Polish or Danish military and decided to run for Parliament, would your military service be heavily used in your favor or perhaps detrimental?