Psychiatric and substance abuse hospitals employed only 3,210 security guards, according to the BLS, less than 8 percent of all hospital guards. However, they were the best paid in the industry, earning an average of $35,000, or $16.83 an hour.
So the basic differences between Cavalry, Artillery and Infantry are as follows. 1  Infantry: Infantry refers to the soldiers on foot. 2  Cavalry: It generally means mounted soldiers. 3  Artillery: It uses large and long ranged weapons.
The former warned the yeomanry not to aspire to a cavalry role and made no distinction between yeomen and mounted infantry, but the latter merely proscribed the traditional cavalry tactic of shock action while otherwise aligning the yeomanry with the cavalry, giving it in effect the role of dismounted cavalry.