Do all armies have the same rank structure?

Read also:

• How can I stop drinking?
• Why is Jack Smith arguing that presidents should not have full immunities as Trump is requesting?
• What questions are asked in a JP Morgan Hirevue interview?
• How was cancer treatment different in the US and the UK?
• What's an uncomfortable truth you've learned to accept?
• Do you like Melania Trump's new official 1st lady black & white power portrait?
• Why don't I want to talk to my girlfriend when she loves me a lot? I feel bored.
• How can you tell if someone or someone's is trying to recruit or at least test you for a secret organization?
• We Finally Know The Route Of Neanderthals’ Massive Migration Across Eurasia - IFLScience
• Which document should be pointed out to a holocaust denier?
• Could humans be selectively bred, like dogs, to create 2 subspecies that can no longer have offspring? Do I not understand selective breeding properly? Im not worried about the moral implications, just the science please.
• What are mean nicknames to call my sister? She is always so mean to me.
• Why can't flat-Earthers create an agency like NASA to explore Earth to prove it is flat? What's preventing them from doing so?
• The Labour Party wants to put the Winter fuel allowance and the £800,000 of gifts received by ministers behind us. Is this a real option for the people who will suffer as our new masters unapologeticly feast on freebies?
• Have you ever accidentally seen your mother-in-law doing something that was private to her?