I like what I'm hearing about players living longer, it being more tactical, and being better at encouraging cooperation.

There would be no more pretense at cooperation.

There were only three of them, and they showed no skill at cooperation.

"Only after repeated efforts at cooperation have proved fruitless would fining be a possibility."

Past attempts at cooperation have been too timid and have fallen short.

She wrote the book at the request and cooperation from the families of the five men.

The other major attempt at economic cooperation, albeit much less ambitious, took place in Northern Europe.

However, the meeting of major powers did prefigure later 20th-century attempts at international cooperation.

In my opinion, we should not compete outright in a number of policy areas but rather arrive at cooperation.

The one major attempt at international cooperation has turned sour.