Getting this force ready for action was a major challenge.
This will be a major challenge for the next governor.
We can therefore work together to meet this major challenge.
If nothing else, this alone can now serve as a major challenge to the rest of the world.
I believe that we are going to face major challenges in the years to come.
This is the major challenge for Europe in the years to come.
They could be, and raising them is a major challenge for the Union.
It is, of course, a major challenge to get the right balance.
In addition, there are of course some major environmental challenges.
This is a major challenge for the Commission as a whole.