The US Defence Secretary Robert Gates has arrived in Baghdad to hold talks with senior Iraqi officials on political and security situation in the country. Gates travelled to Baghdad from Saudi Arabia after his meeting with Saudi King Abdullah bin Abdul-Aziz on Wednesday. During his three-day tour, Robert Gates will hold talks with Iraqi Prime Minister Nuri al-Maliki, President Jalal Talabani and Kurdish regional government leader Masoud Barzani. The US military forces are likely to be pulled out completely from Iraq by the end of this year according to a security pact signed by the two countries in late 2008.