what led to the collapse of the liberal party during the world war?
The Conservative party was led by Lloyd George, who was considered "the Man Who Won the War", who wrote a joint letter of support to candidates to indicate they were considered the official Coalition candidates which was issued to opponents of many sitting Liberal MPs, devastating the incumbents.
History of the United Kingdom during the First World War
wrote a joint letter of support to candidates to indicate they were considered the official Coalition candidates – this "coupon", as it became known, was issued to opponents of many sitting Liberal MPs, devastating the incumbents. 
which factor most directly resulted in great britain entering world war i Belgium had won the war for its independence and at the Treaty of London in 1839 Britain with other major powers guaranteed the independence of this nation. On the 4th of August 1914, Germany invaded Belgium and thus Britain stepped in to honor its promise from 1839. when did this war begin? 1914. who was the prime minister during this time? H. H. Asquith. did he ever become a chancellor? Yes, Chancellor of the Exchequer. did his wife pass away? Yes, 1888. when did he finally resign? December 1916.
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History of the United Kingdom during the First World War [SEP] Collapse of the Liberal Party
In the general election of 1918, Lloyd George, "the Man Who Won the War", led his coalition into another "khaki election" and won a sweeping victory over the Asquithian Liberals and the newly emerging Labour Party. Lloyd George and the Conservative leader Bonar Law wrote a joint letter of support to candidates to indicate they were considered the official Coalition candidates – this "coupon", as it became known, was issued to opponents of many sitting Liberal MPs, devastating the incumbents. Asquith and most of his Liberal colleagues lost their seats. Lloyd George was increasingly under the influence of the rejuvenated Conservative party.