German Chancellor Angela Merkel told a German radio station that military efforts were necessary in Syria even though they would not put an end to the war there.
"Regarding Syria, I said for the first time: We will need military efforts, but military efforts will not bring the solution; we need a political process but that has not really got going very well yet," she told Deutschlandfunk, according to the text of an interview due to be broadcast later on Sunday.
She also said it would be necessary to involve the regime of Syrian President Bashar al-Assad in talks.
"To get to a political solution, I need both the representatives of the Syrian opposition and those who are currently ruling in Damascus and others as well to get real successes and then above all the allies of the respective groups."
She said Russia, the United States, Saudi Arabia and Iran could play an important role as well as Germany, France and Britain.