Gates message to Iraq 's leadership will be `` that it is important for them to complete the government-formation process , particularly to get the security ministries dealt with , '' a senior defense official said . NEW : Gates calls time with troops the `` high point '' of his trip . Defense Secretary Lloyd Austin meets with Iraq troops and commanders . Gates has previously said he will retire Friday . Gates arrived in U.S. on midnight on an unannounced visit .
NEW : Gates calls time with troops the `` high point '' of his trip . Defense Secretary Lloyd Austin meets with Iraq troops and commanders . Gates has previously said he will retire Friday . Gates arrived in U.S. on midnight on an unannounced visit .