This is as it should be, so long as these societies and missions depend upon voluntary support.

And that the whole mission depended upon my having him constantly available for identification?

We'll come back for you, but our mission depends on secrecy and surprise.

Like it or not, the mission depends on Grof.

Above all, the mission depended on getting onto the planet before the Klingons got a message to their command.

Still, Kirk's mission depended on making these people see reason.

The mission depended largely on luck, and their luck had already gone bad.

This mission depends on sufficient advances in system power and radiation protection.

Our mission certainly depends on a lot of short-term considerations, doesn't it?

Their mission - to make higher education more accessible - depends on low tuition.