Yes. My experience is with the British Army. It's a collection of multiple tribes with distinct and powerful local loyalties and rivalries. There may be shared trust, especially when the different parts have trained together or been on ops with each other.
[Edit]. Before I started working with them, I thought that 'uniform' meant 'something that is the same everywhere'. Boy was I wrong. There is a phenomenal variation in the regalia, badges, belt buckles, head dress, etc, etc. And the arcane career development paths, rank structures, e.g. depending on whether your ancestors were foot, cavalry, guns, etc.
[Edit] And these historical variations and beliefs translate into substantial procedural variations. E.g. is an armoured vehicle driver a glorified bus driver or a hardened warfighter? Infantry and armoured units could have very different perceptions of this role, and this would translate into variations in training, career development, prestige, etc.