"The European Union and the United States have urged Turks to adhere to their constitutional processes and warned the military not to intervene. Turkey is a candidate for EU membership, which might give the EU some influence. Yet, that influence is limited because some European countries and many Turks have lost their enthusiasm for Turkey's accession. The official U.S. reaction to events in Turkey appeared to lag behind that of the EU. Early statements encouraged Turkey to follow its constitutional processes, while later ones added a warning to the military. Terrorism has emerged as the major issue in the campaign, which may exacerbate tensions between Turkey and the United States over U.S. inaction against the Kurdistan Workers Party (PKK), a Turkish terrorist group harbored in northern Iraq. The Turkish government and military may take U.S. warnings and domestic political considerations into account in decision-making on a possible incursion into Iraq to fight the PKK."
CRS Report for Congress, RL34039