How to Use "undertaking" with Example Sentences

1. It is sure to be a historic undertaking .
2. They have to be : it is a huge undertaking .
3. Management of the euro crisis is increasingly a grand-coalition undertaking .
4. But doing this for thousands of products would be a mammoth undertaking .
5. The iraq war and other global misadventures have revealed that being the world 's cop is a costly undertaking .