His only effective ally was a knight.

Participants in the team-led workshops acquire skills for shifting prejudicial attitudes and learn how to become more effective allies for one another.

These are the most effective allies of your enemy.

"The most effective ally is an antagonist who aids you unaware," Ichiro reminded him.

If you are, it will make it that much easier to give you the power necessary to be an effective ally.

We might, he thought, have effective allies in the fleet after all.

The Austrians were thus left largely without effective external allies on their southern and western frontiers.

Greece had defeated the Italian invasion and was therefore Britain's only effective ally in Europe.

Death has been often before this the most effective ally of our holy mother the Church.

Some of the most courageous and effective allies many had were Jews.