Do all armies have the same rank structure?

Read also:

• What is the best TV to consider from an interior design perspective?
• "Gasping": Scientists Make Breakthrough Toward Full Cure for HIV - futurism.com
• Trump asks Congress to pull $9.4 billion in funding for NPR, PBS and foreign aid - Axios
• How likely is it to make a living out of being a window cleaner in a Nordic country?
• S&P 500 Gains and Losses Today: Lululemon Stock Falls as Forecasts Reflect Consumer Caution - Investopedia
• Golden Nuggets: Free DMO - Niners Nation
• ‘The Office’ Star Rainn Wilson Says the Show Was a ‘Struggle’ After Steve Carell Left: ‘We Knew it Was Coming For a Long Time’ - Variety
• Invisible radiation leaking from private satellite 'megaconstellations' could ruin radio astronomy forever, experts warn - Live Science
• Bat found in Downtown Boise tests positive for rabies - KTVB
• ‘Once in a Lifetime’ Photo of ISS Crossing the Sun as Solar Flare Erupts - PetaPixel
• Tomato Recall Escalates to Highest Health Risk Alert—Here’s What You Need to Know - Real Simple
• Agent-based computing is outgrowing the web as we know it - VentureBeat
• What are the 10 things you regret doing in your life?
• One day, I happened to walk past where my crush was with friends. Then all of a sudden they start laughing, and someone maybe him, goes "freaking (my name) with her freaking hair!" Can anyone offer insights into this? We're in middle school.