'friendly partner' is correct and usable in written English.
You can use it to refer to someone you work with, or someone who is part of a team or organization with you. For example, "I'm grateful to have such a friendly partner to work with on this project."
In that case, Mr. Barkey said, Turkey would be better off with a friendly partner in Iraq's energy-rich north.
More effective is a piece of flattery: that TTIP is essentially an extension of the EU's single market to a friendly partner.
Russia, Mr. Bush seemed to say, could become a friendly partner to his world vision or it might find itself alone.
Reschke assumed Blackstone would behave like a friendly partner.
They "contradict everything that I understand to be a trusting co-operation between friendly partners".
Tech firms, even those that pride themselves on being friendly partners to the TV business, delivered warnings.
Complicating the decision is the role of successive Italian governments as friendly partners to Fiat, maintaining closed markets and providing investment aid.
In the Indonesian president (Susilo Bambang Yudhoyono) and Malaysian prime minister (Abdullah Ahmad Badawi) Australia sees friendly partners where previously it saw an erratic edginess.
To find out how quickly friendly partners evolve, Corrie Moreau, an evolutionary biologist at the Field Museum of Natural History in Chicago, Illinois, and her graduate student Benjamin Rubin sequenced the genomes of seven ant species.
I saw the same in Iraq, as the U.S.' need for friendly partners and compliant politicians added massive overhead (corruption, price inflation) to our efforts.
When the regime collapsed in the face of a popular uprising in 2011, the country was left with an array of dysfunctional and discredited institutions, and the United States was left to scramble for friendly partners and a viable path to stability.
