The total registration under the operation of the Selective Service Act, during the whole period, June 5, 1917-September 12, 1918, according to the report of the Provost Marshal General,[128] was 23,908,576. Of these registrants--roughly speaking, one-fifth of the total population of the United States--20,031,493 were citizens; 3,877,083 were aliens. Of the citizens, 1,336,967 (6.67 per cent) were foreign-born and naturalized. Of the aliens, about one in three (1,270,184--32.76 per cent) had declared intention to seek citizenship. More than two and one-half millions (2,606,901--67.24 per cent) were aliens out-and-out, still owing full allegiance to other sovereignties, and of nationality, so far as the war was concerned, divided as follows: TABLE XXX ALLEGIANCE OF ALIENS REGISTERED UNDER THE SELECTIVE SERVICE ACT{1} =========================================================== | NUMBER | PER CENT -------------------------------+--------------+------------ Total registration | 3,877,083 | 100.00 Ages 21-31 | 1,703,006 | .... Ages 18-20, 32-45 | 2,174,077 | .... | | Cobelligerents (the Allies) | 2,228,980 | 57.49 Ages 21-31 | 1,021,063 | .... Ages 18-20, 32-45 | 1,207,917 | .... | | Neutrals | 636,601 | 16.42 Ages 21-31 | 249,034 | .... Ages 18-20, 32-45 | 387,567 | .... | | Enemy and allied enemy | 1,011,502 | 26.09 Ages 21-31 | 432,909 | .... Ages 18-20, 32-45 | 578,593 | .... =========================================================== [note 1: _Second Report of the Provost Marshal General to the Secretary of War_, on the Selective Service System to December 20, 1918, p. 90, Table 23.] We have no figures to show how many of those aliens and declarants registered in the registration of September 12, 1918, were below the age of 21 years; therefore it is not possible to say just what proportion were available for naturalization under the special provisions of the law of May 9th. The previous registration had applied altogether to men above the age of 21, and of course all of those in the subsequently registered class 32-45 were naturalizable so far as age was concerned.