Manpower, land systems, air power, sea power, resources, economics, and geography, must be taken into account when compiling this list.
1. America
Power Index: 0.2475
Defense Budget: $689,591,000,000
Active military personnel: 1,477,896
Workforce: 153,600,000
Total number of aircraft: 15,293
Total Naval Strength: 290
2. Russia
Power Index: 0.2618
Defense budget: $64,000,000,000
Active military: 1,200,000
Workforce: 75,330,000
Total number of aircraft: 4498
Total Naval Strength: 224
3. China
Power Index: 0.3351
Defense Budget: $129,272,000,000
Active military: 2,285,000
Workforce: 795,500,000
Total number of aircraft: 5048
Total Naval Strength: 972
4. India
Power Index: 0.4346
Defense budget: $44,282,000,000
Active military: 1,325,000
Workforce: 487,600,000
Total number of aircraft: 1,962
Total Naval Strength: 170
5. Great Britain
Power Index: 0.5185
Defense budget: $57,875,170,000
Active military personnel: 224,500
Workforce: 31,720,000
Total number of aircraft: 1412
Total Naval Strength: 77