Do all armies have the same rank structure?

Basically yes.

XX Lieutenant Colonel (battalion leader or regiment vice leader)

Private (does all the menial work)

xx Lieutenant (platoon leader or company vice leader)

###### Field Marshal (commander of the military branch)

((>>> Company Sergeant (company quartermaster)

### General (corps leader)

(>>> Staff Sergeant (platoon leader or company quartermaster)

> Lance Corporal (squad vice leader)

####### Generalissimus (overall supreme commander)

X Major (battalion leader)

>> Corporal (squad leader)

XXX Colonel (regiment leader

xxx Captain (company leader)

##### Army General (theatre leader)

## General Lieutenant (division leader)

>>> Sergeant (platoon vice leader)

x Junior Lieutenant (platoon leader)

# General Major (brigade leader)

#### Colonel General (army group leader)