"Mission". Interesting word.
The Roman Catholic Spaniards had "missions" in California.
A military effort is called a "mission".
I can be on a "mission" to go to the store and get milk.
A NASA shuttle flight, launch of a satellite or trip to another planet is a "mission".
A proseletyzing religious person is a "mission"-ary, as is the carrier of any agenda to any form of infidel.
An embassy is a "mission".
A company or organization has a "mission".
Useful word, eh?