10.7 City guards

The Minister of Security and his or her aides in each city have the power to
protect the city from enemies, by declaring people official enemies of the
city, and by purchasing a variety of guards to both guard specific locations
within the city, and patrol it looking for enemies generally.

If you're being attacked within your city and need help, you'll want to CALL
FOR HELP. Doing so will attract the interest of city guards within shouting
range, who will come running to help. But be warned that CALL FOR HELP takes
equilibrium, and that the guards will -only- attack city enemies. Guards will
also act to protect other NPC citizens of your city, coming at their call when
these poor civilians are attacked.

See also: HELP SECURITY, HELP SQUADS, and HELP PATROLS.