Sen. John McCain arrived in Baghdad on Sunday, marking his first trip to Iraq since becoming the presumed Republican candidate for president – but his eighth trip since the US-led invasion begun five-years ago.

McCain traveled there with Sens. Lindsey Graham, R-South Carolina, and Joseph Lieberman, I-Connecticut, both of whom serve on the Armed Services Committee with McCain, the committee’s ranking member.

The visit was unannounced for security reasons.