Joseph Ralston, the United States coordinator for the fight against Kurdistan Workers' Party (PKK) warned the US administration that Turkish Armed Forces will conduct a cross-border operation into northern Iraq in late April, the Washington Post reported. The Spokesman for the US Department of State Sean McCormack said on Tuesday that the US did not approve of a possible cross-border military operation by Turkey in northern Iraq. Stating that Syria and Iran have no intention of attacking Turkey at the moment, McCormack indicated that the real problem was between Iraq and Turkey and both countries should work together to solve their problems.