HELPPP ME PLZ I'LL GIVE BRAINILIEST! Look at the image.

Identify and describe the military tactic shown, and explain how it helped the Greek city-states develop strong militaries.

Phalanx, in military science, tactical formation consisting of a block of heavily armed infantry standing shoulder to shoulder in files several ranks deep. Fully developed by the ancient Greeks, it survived in modified form into the gunpowder era and is viewed today as the beginning of European military development.

there has only been 12 presidents. the 12th president is/was moon jae-in

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali