How does this leave ministerial lineup in the Ministry of Defence?
This is how the department currently looks.
Gavin Williamson MP – Secretary of State for Defence
Gavin Williamson was given the job of Secretary of State for Defence on 2 November 2017, following the resignation of Sir Michael Fallon.
In this position he has overall responsibility for the business of the Ministry of Defence.
This involves overseeing operational strategy, defence planning and resource allocation.
In his first keynote speech as Defence Secretary, Mr Williamson said "frankly, Russia should go away and should shut up" in response to the Salisbury nerve agent attack in March.
In the last few months, Mr Williamson has visited the 2nd Battalion Royal Gurkha Rifles in Brunei, met with British personnel from the NATO battle group stationed in Estonia and travelled to RAF Akrotiri to meet personnel fighting Islamic State.
Before his most recent appointment at the Ministry of Defence, he held the position of Chief Whip from July 2016.
In November 2016, Mr Williamson voted against an investigation into the contrast between public statements and private actions in the run-up to the Iraq war.
He also voted in support of the replacement of the four Trident nuclear missile submarines, to maintain the UK’s sea born nuclear deterrent.
He has largely voted for the use of UK military forces in combat operations overseas between 2010 and 2015.
This included voting in support of UK airstrikes against ISIL, in Syria in 2015 and Iraq in 2014. He also voted in support of deployment of forces in Afghanistan in 2010.
Mr Williamson became a Member of Parliament in May 2010, when he was elected as the Conservative MP for South Staffordshire.
Mark Lancaster MP - Minister of State for the Armed Forces
Mr Lancaster was appointed as the Minister of State for the Armed Forces in June 2017.
In this role he's responsible for the activity of the armed forces, including operations, operational legal matters and force generation.
He's also responsible for international defence engagement matters, such as Permanent Joint Operating Bases and international defence engagement.
At the start of the year, Mr Lancaster expressed his delight on Twitter at being reappointed as Minister of State for the Armed Forces.
Between 2013 and 2015, he consistently voted for the use of UK military forces in combat operations overseas.
On July 18, 2016, he voted in support of the replacement of the Trident nuclear missile submarines, to help maintain the UK’s nuclear deterrent.
He also voted against an investigation into the contrast between public statements and private actions in the run-up to the Iraq war on November 30, 2016.
Mark Lancaster is a reservist and serves as a Colonel in the Royal Engineers. He has been selected as Deputy Commander 77 Brigade.
It was after leaving school that he began his military service with a gap year in commission, stationed in Hong Kong with the Queen's Gurkha Engineers between 1988 and 1990.
He then transferred his commission to the Army Reserve in 1990 after returning from university to help run his family business.
In the following 29 years of service Mr Lancaster commanded a Royal Engineer Bomb Disposal Squadron and was deployed on operational tours in Afghanistan, Bosnia, and Kosovo.
He was awarded the Territorial Decoration in 2002, the Volunteer Reserves Service Medal for long service in 2011 and the Bar in 2016.
Elected as the MP for North East Milton Keynes, he joined the House of Commons on the 5th of May 2005.
Tobias Ellwood MP - Parliamentary Under Secretary of State and Minister for Defence People and Veterans
On the 14th of June 2017, Tobias Ellwood was appointed Parliamentary Under Secretary of State at the Ministry of Defence.
In this position Mr Ellwood is responsible for defence people and veterans.
This includes overseeing things like the Armed Forces Covenant, the Armed Forces People Programme and veterans’ policy.
Mr Ellwood also took to Twitter after receiving confirmation he would stay in his role at the Ministry of Defence.
Mr Ellwood served on the Armed Forces Bill Committee as a member from January 2011 to March 2011.
Previously he held the position of Parliamentary Under-Secretary of State for Foreign and Commonwealth Affairs between July 2014 and June 2017.
In terms of voting Mr Ellwood supported the use of UK military forces in overseas combat operations.
Between 2010 and 2015 he voted in support of airstrikes in Iraq and Syria against ISIL, for the establishment of a no-fly zone in Libya and for the continued deployment of UK armed forces in Afghanistan.
Between 2006 and 2007 Mr Ellwood voted in support of inquiries into the Iraq war, but then in 2016 voted against an investigation into the contrast between public statements and private actions in the run up to the war.
In 2011 he voted against a legally binding Military Covenant set out in law and against considerations having to be made when considering a person’s military service when setting policy concerning healthcare education and housing policy.
Mr Ellwood spent six years in the British Army. He served with the Royal Green Jackets in Northern Ireland, Cyprus, Kuwait, Germany, Gibraltar and Bosnia and remains an active Army Reservist today.
Tobias Ellwood was elected as the Conservative MP for Bournemouth East in May 2005, then subsequently re-elected in 2010, 2015 and 2017.
Stuart Andrew - Minister for Defence Procurement
Stuart Andrew was appointed the new Minister for Defence Procurement on Thursday.
He replaced Guto Bebb who resigned from the post on Tuesday.
Mr Andrew will be responsible for the Equipment Plan, defence industry and exports.
This will cover nuclear enterprise, innovation and information computer technology.
According to the records website, They Work For You, Mr Andrew consistently voted for the use of British military forces in overseas combat operations and consistently for military action against Islamic State.
The same records show the new Defence Minister also consistently voted for replacing Trident with a new weapons system but voted against investigations into the Iraq War.
Earl Howe - Minister of State for Defence
Lord Howe was appointed Minister of State for Defence in May of 2015 and also holds the position of Deputy Leader of the House of Lords.
In this unpaid role, the Minister is responsible for ceremonial duties, commemorations and acts as spokesman for all defence matters in the House of Lords.
These topics range from engagements with retired senior defence personnel to arms control and proliferation.
Last year, Lord Howe received a visit from Brunei’s Deputy Minister of Defence.
In opposition he served as Spokesman for Health from 1997 to 2010.
Prior to this Lord Howe served as Parliamentary Under Secretary of State from 1995 to 1997.
Lord Howe entered the House of Lords as a Conservative Peer in 1984 and has since occupied numerous ministerial roles.
Full details on MP voting records can be found at TheyWorkForYou.com