Military Service is the countries power to save their land and keeps control inside the country, but all these takes developments and man power of the countries. Humans have been on earth from thousands of years with war and blood for land, empire and freedom. Today’s generation built with rules and regulation with many agreements between the countries to avoid Wars. Every county in the world stand upon manpower such as development and Military. As the world know China takes first place and India in Second Position on Manpower available for Military Purpose. The Report below with both Male and Female Adults they are eligible and above 16 and below 49 years old to serve in Army Services.
| Rank | Countries | Males age 16-49 | Females age 16-49 | Total Manpower | Year of Estimation |
|---|---|---|---|---|---|
| 1 | China | 318,265,016 | 300,323,611 | 618,588,627 | (2010 est.) |
| 2 | India | 249,531,562 | 240,039,958 | 489,571,520 | (2010 est.) |
| 3 | United States | 60,620,143 | 59,401,941 | 120,022,084 | (2010 est.) |
| 4 | Indonesia | 54,264,299 | 53,274,361 | 107,538,660 | (2010 est.) |
| 5 | Brazil | 38,993,989 | 44,841,661 | 83,835,650 | (2010 est.) |
| 6 | Pakistan | 37,945,440 | 37,381,549 | 75,326,989 | (2010 est.) |
| 7 | Bangladesh | 23,239,866 | 25,642,549 | 48,882,415 | (2010 est.) |
| 8 | Mexico | 20,431,035 | 26,381,518 | 46,812,553 | (2010 est.) |
| 9 | Russia | 22,390,431 | 21,540,322 | 43,930,753 | (2010 est.) |
| 10 | japan | 20,142,940 | 21,427,792 | 41,570,732 | (2010 est.) |
| 11 | Philippines | 20,405,847 | 21,098,102 | 41,503,949 | (2010 est.) |
| 12 | Vietnam | 20,839,976 | 19,867,683 | 40,707,659 | (2010 est.) |
| 13 | Nigeria | 17,664,510 | 17,340,816 | 35,005,326 | (2010 est.) |