![(FILES) In this file photo taken on March 29, 2018, US Secretary of Defense James Mattis arrives to greet incoming National Security Advisor John Bolton outside the Pentagon before a meeting in Washington, DC. US Defense Secretary Jim Mattis will be retiring at the end of February, President Donald Trump said Thursday, December 20, 2018. "General Jim Mattis will be retiring, with distinction, at the end of February, after having served my Administration as Secretary of Defense for the past two years," Trump tweeted. / AFP / Brendan Smialowski](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/2K2UMSNHLUOAI53BCQDPQVSYHU.jpg?smart=true&auth=f44cade555f13793410793cedf960df9c1dd13ee276409c655ffa73a604a18d9&width=400&height=225)
Donald Trump revealed Mattis' departure on Twitter. AFP
Donald Trump revealed Mattis' departure on Twitter. AFP
US Secretary of Defence James Mattis resigns after clashing with Trump
Citing differences with US President, including Syria, the US Defence Chief is exiting the administration end of February
Joyce Karam
22 December, 2018