Pacific
He's a pacific human being even though his past is not the happiest one.
Pacifist
I've met a lot of pacifists but who are always ready to protect their families no matter how.
Pacify
Everytime I see people fighting I try to pacify them before doing something which might regret sooner or later.
Pax Americana
More countries should take the example of Pax Americana and protect themselves.
Please read Rules #5 and #6 above, as well as the note under "Schedule." Then follow the rules.
Thanks!