"involved countries" is correct and can be used in written English.
For example, "The peace conference involved countries from across the world."
Three consular officers from the involved countries joined in the questioning.
On Saturday, the Taliban announced that family members could see the prisoners, as could consular officers from the involved countries.
Phone records indicate that much of the traffic involved countries such as Afghanistan, Pakistan and Saudi Arabia.
But it tried to minimize the extent of them by saying they involved countries that accounted for less than 10percentt of its business combined.
Although doubt has been cast on the Saudi defence ministry's list of 34 supposedly involved countries, it is aiming to co-ordinate efforts against extremists in several countries from Riyadh.
They also involved countries more or less ready to join the EU at the time they applied, not ones emerging from communist central planning, and requiring fundamental reform, under EU supervision, prior to joining.Enlargement to the east will require, moreover, a basic overhaul of the institutions and finances of the EU itself.
But Israeli officials said they would be open to an agreement involving countries in the region.
Regional carbon markets involving countries or groups of states can move things in the right direction.
"Any movement of American forces would almost certainly involve countries and individuals taking the wrong message," said Kurt Campbell, a deputy assistant secretary of defense during the Clinton administration.
"The system [being proposed by Japan and the US] would involve countries making voluntary pledges and trying to fulfil them but with no review or legal commitment.
First, it is the pilot for a global study involving countries from all regions of the world as defined by the World Health Organization.
