GlobalMilitary.net Open-source military intelligence Updated daily
Head-to-head

Army comparison: Flag of Japan Japan vs Flag of United States United States

United States's army fields 168,979 active vehicles — 44:1 Japan's 3,825. Additionally, Japan has 0 and United States has 13,650 vehicles in storage.

ARMS (Armour and Manpower Rating of Strength) Index face-off Full ranking →
Flag of Japan JapanWorld #27 28.9
ARMS Index / 100

United States leads on 7 of 8 categories

Flag of United States United StatesWorld #1 100.0
  • 302 Main battle tanksweight ×10 · era 2,666+2,000 stored
  • 40 Rocket artilleryweight ×8 · era 552
  • 175 Self-propelled artilleryweight ×6 · era 670+850 stored
  • 179 Infantry fighting vehiclesweight ×4 · era 7,724+2,800 stored
  • 100 Towed artilleryweight ×3 · era 1,212
  • 1,003 Armoured personnel carriersweight ×2 · era 5,250+8,000 stored
  • 200 Light armoured vehiclesweight ×2 · era 0
  • 1,826 Protected mobility vehiclesweight ×0.5 · era 150,905
Japan United States Bars: weighted contribution to the ARMS Index (vehicles × category weight × era, active + 0.3 × stored; manpower and the rotary, armament and availability multipliers apply on top) · figures: active vehicles at each side's latest inventory year · Methodology
Key figures as of 2026
Japan United States Ratio
Total vehicles 3,825 168,979 🇺🇸 44×
In storage 0 13,650 🇺🇸
On order 310 13,273 🇺🇸 43×
Main battle tanks 302 2,666 🇺🇸 8.8×
Artillery pieces 315 2,434 🇺🇸 7.7×
Armoured fighting vehicles 3,208 163,879 🇺🇸 51×
Active military personnel (all branches) 247,000 1,326,050 🇺🇸 5.4×
Reserve military personnel (all branches) 55,900 806,700 🇺🇸 14×
Show full breakdown · 5 more rowsHide the 5 extra rows
Infantry fighting vehicles 179 7,724 🇺🇸 43×
Armoured personnel carriers 1,003 5,250 🇺🇸 5.2×
Self-propelled artillery 175 670 🇺🇸 3.8×
Towed artillery 100 1,212 🇺🇸 12×
Rocket artillery 40 552 🇺🇸 14×
Backbone vehicles most numerous in service
🇯🇵 JapanMitsubishi Type 90 ×185AAV-7A1 ×52M270 MLRS ×40
🇺🇸 United StatesM1 Abrams ×2,640IAV Stryker ×4,214M109 Paladin ×670
Explore this matchup
Go deeper · same matchup, other lenses
Military strength Air forces Navies Ranks & insignia
Change opponent
Japan vsChinaSouth KoreaPakistanIndiaTurkey
United States vsIranChinaRussiaNorth KoreaIndia
Related comparisons
United States vs Venezuela Armies

Frequently Asked Questions

Which country has more armored vehicles, Japan or United States?
United States has a larger ground force with 168,979 vehicles compared to Japan's 3,825 vehicles.
Which country has more tanks, Japan or United States?
United States operates more main battle tanks with 2,666 compared to Japan's 302.
Which army has more infantry fighting vehicles, Japan or United States?
United States has 7,724 infantry fighting vehicles compared to Japan's 179.
Which country has more armored personnel carriers, Japan or United States?
United States operates 5,250 APCs compared to Japan's 1,003.
Which country has more artillery systems, Japan or United States?
United States fields 2,434 artillery systems (self-propelled, towed, and MLRS) compared to Japan's 315.
How do the Japan and United States armies compare in size?
United States's army is 44.2 times larger than Japan's in terms of total vehicles (168,979 vs 3,825).