I don't like to separate a group in an unknown situation.

Toby could tell his father was carefully feeling his way into a completely unknown situation.

In an unknown situation, Matt said, step one is to establish the parameters of your problem.

Probably they were lovers, a situation unusual but not unknown though seldom stable.

In any case, it never hurts to "take care in an unknown situation."

A hungry predator might go check out an unknown situation.

The aim is to defend oneself in an unknown situation.

All of which suggests we'd be foolish to go rushing into an unknown situation without doing some hard thinking first.

Taking the bulk of his available force into an unknown situation was risking disaster.

Leaving the security of a familiar situation for an unknown situation is difficult enough.