How do I join a squad?

There are squad options at the lower right corner of the aircraft page. I keep trying to join a squad but cannot find a squad to join.

u need to either invite someone to join ur squad (from ur added friends etc) or be invited by someone to join their squad.

If you have auto join a squad selected in options, the matchmaker will assign you to a random other unsquadded player who will most likely either ignore you or be on the other side of the map.

A squad, as in teammates and friends, or squad, as in squadron?