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.
Cavalry is a unit of soldiers mounted on horseback. As stated above, the word Cavalry comes from the French word cavalerie, or chevalerie and the Latin word caballus, meaning horse. Horseback riding probably evolved independently in the Eurasian steppes and the mountains above the Mesopotamian plain.