Global Firepower Index 2018: US Army world's most powerful, India at 4th position after China

For measuring the military strength, the Global Firepower Index takes into account factors like military resources, diversity of weapon systems, natural resources, industry and geographical features and available manpower.

The Global Firepower Military Strength Index 2018 has ranked nine Asian countries, including India and China, among world's 20 most powerful militaries.

The other Asian countries in the list include Japan, South Korea, Pakistan, Indonesia, Vietnam, Taiwan and Thailand.

For measuring the military strength of 133 countries of the world, the Global Firepower Military Strength Index takes into account factors like military resources, diversity of weapon systems, natural resources, industry and geographical features and available manpower.

Under the Global Firepower Index, 0.0000 is considered the perfect rating on the basis of these factors.

China has scored 0.0945 on this index and is ranked third after USA and Russia.

India is ranked fourth on this index.