Obama, who called the attacks of Paris as "a crude attempt to terrorize citizens" on the eve of his departure to Turkey, will face questions on how to respond now West, at a time that has become obvious Islamic State poses a threat beyond the strongholds of militants in Syria and Iraq.
Washington also expects France to retaliate by taking an even greater role in the bombing campaign of the coalition led by the United States against the Islamic. But Obama wants to convince the leaders of other countries of Europe and the Middle East, for tangible steps through military efforts, said a US official before President heading for 9-day trip outside the US s.
It is expected however to be seen whether the United States itself have "appetite" for inclusion even deeper, because so far has escalated air strikes, and dropped to the ground a small number of troops Special Operational in northern Syria but in the role of advisers to opposition forces in the fight against the Islamic State.
Two-day summit of the Group of 20 most industrialized nations (G20) brings world leaders, including Obama, only 500 km away from Syria, where civil strife almost 5 years has transformed militants a threat to global security and it has caused the worst crisis of refugees in Europe since World War II.
Obama is expected to hold bilateral talks with Turkish President Recep Tayyip Erdogan, ahead of the summit and then, during a working dinner will hold talks with other world leaders on Syria, including issues such as counterterrorism and refugee crisis.
