The Grand Duke had no part in the planning and preparations for World War I, that being the responsibility of General Vladimir Sukhomlinov and the general staff. On the eve of the outbreak of World War I, his first cousin once removed, the Emperor Nicholas II of Russia, yielded to the entreaties of his ministers and appointed Grand Duke Nicholas to the supreme command. He was 57 years old and had never commanded armies in the field before, although he had spent almost all of his life on active service. His appointment was popular in the army. He was given responsibility for the largest army ever put into the field up to that date. He recalled that "... on receipt of the Imperial order, he spent much of his time crying because he did not know how to approach his new duties."