<Tr> <Td_colspan="2"> Military alliance </Td> </Tr> <Tr> <Td_colspan="2"> 1914--1918 </Td> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Allied and Associated Powers (and their colonies) </Li> <Li> Central Powers (and their colonies) </Li> <Li> Neutral Powers </Li> </Ul> Principal Allied Powers: <P> France British Empire Russia to October 1917 Japan from August 1914 Italy from April 1915 United States; co-belligerent from April 1917 </P> Associated Allies and co-belligerents: <Ul> <Li> 1914; Serbia Belgium Montenegro </Li> <Li> 1915; Emirate of Asir Emirate of Nejd and Hasa </Li> <Li> 1916; Portugal Romania </Li> <Li> 1917; Hejaz Greece China Siam Brazil </Li> <Li> 1918; Albania Armenia </Li> </Ul> </Td> </Tr> <Ul> <Li> Allied and Associated Powers (and their colonies) </Li> <Li> Central Powers (and their colonies) </Li> <Li> Neutral Powers </Li> </Ul>

Who was the us allied with in ww1
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