"This is a critical week for us," Holtz said.

With virtually no warning, the Air Force injected itself into the war in the first critical week.

Administration officials say they have only a few critical weeks to renew negotiations to try to find agreement on foreign spending.

Challenges can virtually shut down a small campaign during critical weeks, and be extremely costly.

"There is great music in the stores and these are critical weeks."

Within his own party, Mussolini faced doubts and dissension during these critical weeks.

A critical week is ahead, with the Red Sox and the Yankees.

In the critical weeks ahead, his personal tensions might act as a trigger mechanism that could destroy the ship.

So critical that there are only three weeks left to act on the information we have.

But it wasn't enough to get what Green had called a critical week off to a good start.