But the routes taken to achieve that critical milestone have varied greatly through the years.

But we reached a critical milestone with the White House's new commitment to strengthen the city's flood protection system.

"It's a critical milestone, and it means we are on time for the beginning of construction in March."

With critical financial milestones looming at the end of September, the airline is pressing the unions to come to terms by Sept. 15.

He described the vote as a "critical milestone" and stated that it "has brought us significantly closer to achieving the core objectives I laid out".

The reorganization act, widely acknowledged as a critical milestone in modernizing the House, reduced the number of committees from 48 to 19.

President Bush rightly claimed yesterday that it was a critical milestone toward the reconstruction of Iraq.

This is a critical milestone to victory in this war, a necessary step for bringing our troops home.

Proto 2 is a critical milestone of thought-controlled mechanical arms.

In July 2004, Maven's release was the critical first milestone, v1.0.