Question: Who was the British Conservative Party politician who was the highly energetic Prime Minister of the Wartime Coalition Government (1916–22)?

<P0-S0> Shailesh Lakhman Vara (born 4 September 1960) is a British Conservative Party politician. <P0-S1>  He was elected Member of Parliament (MP) for North West Cambridgeshire in the 2005 general election, succeeding Brian Mawhinney as the Conservative MP for the seat. <P0-S2>  Vara has previously been a Vice-Chairman of the Conservative Party. <P0-S3>  In 2006, he was appointed to the shadow ministerial post of Shadow Deputy Leader of the House of Commons. <P0-S4>  Following the 2010 general election, he was appointed to the position of Assistant Whip in the coalition government. <P0-S5>  On 7 October 2013, he was appointed Parliamentary Under Secretary of State at the Ministry of Justice. <SEP> <P1-S0> William Hayes Fisher, 1st Baron Downham PC, KStJ (1853 – 2 July 1920), was a British Conservative Party politician. <P1-S1>  He held office as President of the Local Government Board and Minister of Information in David Lloyd George's First World War coalition government. <SEP> <P2-S0> Clement Richard Attlee, 1st Earl Attlee, {'1': ", '2': ", '3': ", '4': "} (3 January 1883 – 8 October 1967) was a British Labour politician who served as Prime Minister of the United Kingdom from 1945 to 1951 and Leader of the Labour Party from 1935 to 1955. <P2-S1>  In 1940, Attlee took Labour into the wartime coalition government and served under Winston Churchill, becoming the first person to hold the office of Deputy Prime Minister of the United Kingdom. <P2-S2>  He went on to lead the Labour Party to an unexpected landslide victory at the 1945 general election; forming the first Labour majority government, and a mandate to implement its postwar reforms. <P2-S3>  The 12.0% national swing from the Conservatives to Labour was unprecedented at that time and remains the largest ever achieved by any party at a general election in British electoral history. <P2-S4>  He was re-elected with a narrow majority at the 1950 general election. <P2-S5>  In the following year, Attlee called a snap general election, hoping to increase his parliamentary majority. <P2-S6>  However, he was narrowly defeated by the Conservatives under the leadership of Winston Churchill; despite winning the most votes of any political party in any general election in British political history until the Conservative Party's fourth consecutive victory in 1992. <P2-S7>  Attlee remains the longest-ever serving Leader of the Labour Party. <SEP> <P3-S0> David Lloyd George, 1st Earl Lloyd-George of Dwyfor, {'1': ", '2': ", '3': ", '4': "} (17 January 1863 – 26 March 1945) was a British Liberal politician. <P3-S1>  As Chancellor of the Exchequer (1908–1915), Lloyd George was a key figure in the introduction of many reforms which laid the foundations of the modern welfare state. <P3-S2>  His most important role came as the highly energetic Prime Minister of the Wartime Coalition Government (1916–22), during and immediately after the First World War. <P3-S3>  He was a major player at the Paris Peace Conference of 1919 that reordered Europe after the defeat of the Central Powers.