The current marine corps has about 3000 members. It's wapenspreuk is Qua Patet Orbis.
... 18 to 24, 31.9% from 25 to 44, 23.3% from 45 to 64, and 13.9% who are 65 years of age or older. The median age is 38 years. For every 100 females there are 94.9 males. ...