"We look forward to learning more about what Saudi Arabia has in mind in terms of this coalition," Ash Carter told journalists at Incirlik in Turkey, responding to a question on the initiative announced by Saudi Arabia early on Tuesday, Reuters reported.
"But in general it appears it is very much in line with something we've been urging for quite some time, which is greater involvement in the campaign to combat ISIL (Islamic State) by Sunni Arab countries," he added.
Note that, Saudi Arabia has announced the formation of a coalition of 34 predominately Muslim nations to fight terrorism.