In 1910 Churchill became Home Secretary, one of the most important members of the government. In 1911 he was made First Lord of the Admiralty, which put him in charge of the Royal Navy. When World War I broke out, he stayed in that job. He organized an invasion in Gallipoli which went wrong, and because of this, he was made to leave the government. He joined the army and was sent to fight in France, although he was still a Member of Parliament. In 1917 he was made minister in charge of military supplies (Minister of Munitions).