Army comparison: 
Spain vs 
United States
United States's army fields 171,065 active vehicles — 28:1 Spain's 6,152. Additionally, Spain has 25 and United States has 12,800 vehicles in storage.
Ground forces pillar (ARMS Index) face-off All armies →
SpainGround pillar #29
62.7
Ground pillar / 100
United States leads on 7 of 7 categories
United StatesGround pillar #1
100.0
Spain
United States
Bars: weighted contribution to the ARMS ground pillar (vehicles × category weight, active + 0.3 × stored) · figures: active vehicles at each side's latest inventory year · Methodology
Key figures as of 2026
| Spain | United States | Ratio | |
|---|---|---|---|
| Total vehicles | 6,152 | 171,065 | 🇺🇸 28× |
| In storage | 25 | 12,800 | 🇺🇸 512× |
| On order | 348 | 12,602 | 🇺🇸 36× |
| Main battle tanks | 274 | 2,666 | 🇺🇸 9.7× |
| Artillery pieces | 234 | 4,930 | 🇺🇸 21× |
| Armoured fighting vehicles | 5,644 | 163,469 | 🇺🇸 29× |
| Active military personnel (all branches) | 120,350 | 1,326,050 | 🇺🇸 11× |
| Reserve military personnel (all branches) | 15,150 | 806,700 | 🇺🇸 53× |
Show full breakdown · 5 more rowsHide the 5 extra rows
| Infantry fighting vehicles | 225 | 7,724 | 🇺🇸 34× |
| Armoured personnel carriers | 2,038 | 6,863 | 🇺🇸 3.4× |
| Self-propelled artillery | 96 | 1,521 | 🇺🇸 16× |
| Towed artillery | 138 | 1,878 | 🇺🇸 14× |
| Rocket artillery | 0 | 1,531 | 🇺🇸 |
Backbone vehicles most numerous in service
Analyst Assessment
Run the wargame simulation →Verdict
Edge: United States
The United States holds a decisive advantage over Spain in every ground domain, fielding roughly 2,666 main battle tanks and 171,000 armoured vehicles against Spain's 274 and 6,152, backed by an order of magnitude more personnel and a rocket artillery arm Spain lacks entirely. Spain fields a competent, NATO-standard mechanised force built on Leopard 2 and ASCOD, but at brigade-and-division scale rather than the US Army's continental scale.
Domain by domain
Armour
Edge: United States
🇪🇸 Spain274 Leopard 2 main battle tanks, a modern and well-regarded Western type, but a single generation and a small pool sized for one or two heavy brigades with limited attrition reserve.
🇺🇸 United States2,666 tanks, overwhelmingly M1 Abrams (2,640), plus 12,800 vehicles in storage supporting reconstitution and prepositioned stocks. Nearly ten times Spain's tank count in one standardised, continuously upgraded family.
Artillery & rocket forces
Edge: United States
🇪🇸 Spain234 tubes: 96 M109 Paladin self-propelled, 138 towed (SBS 155/52, L118). No rocket artillery at all, leaving deep-strike fires dependent on air power or allied assets.
🇺🇸 United States4,930 pieces including 1,521 M109 Paladin, 1,878 towed (M777) and 1,531 rocket systems such as the M270 MLRS, giving organic long-range precision fires Spain cannot match in kind.
Mechanised infantry
Edge: United States
🇪🇸 Spain5,644 armoured fighting vehicles: 225 ASCOD IFVs, 2,038 APCs led by 1,200 ageing M113 and 648 Pegaso BMR, and 3,381 light vehicles, mostly URO VAMTAC. 348 VCR 8x8 Dragon on order.
🇺🇸 United States163,469 AFVs: 7,724 IFVs (4,214 Stryker, 3,510 M2 Bradley), 6,863 APCs and 148,882 light vehicles including 125,000 HMMWV and 12,500 JLTV, enabling simultaneous heavy, medium and light formations.
Reserves & mobilisation
Edge: United States
🇪🇸 Spain120,350 active personnel with only 15,150 reserves — a small, professional force with a thin mobilisation base and little capacity to regenerate losses independently.
🇺🇸 United States1,326,050 active and 806,700 reserves, with Army National Guard and Reserve formations providing fully equipped follow-on divisions and rotational depth.
Sustainment & industry
Edge: United States
🇪🇸 Spain348 vehicles on order against 25 in storage; depends on European programmes and licence production, with limited domestic capacity to replace heavy losses quickly.
🇺🇸 United States12,602 vehicles on order (ISV, AMPV, M109 Paladin) plus 12,800 in storage, sustained by a domestic armoured-vehicle and ammunition industrial base of global scale.
Wildcards
- Shared NATO framework Both armies operate within NATO standards and much common equipment — M113, M109 Paladin, 155 mm ammunition. Interoperability means Spain's force is designed to plug into coalition operations rather than fight independently.
- Expeditionary reach US ground forces are structured for global deployment with organic strategic lift, prepositioned stocks and forward basing. Spanish formations deploy at battlegroup or brigade scale, typically under alliance or UN arrangements.
- Recent combat experience The US Army has sustained large-scale ground operations over the past two decades, shaping doctrine and training tempo. Spanish experience is concentrated in smaller peacekeeping and coalition deployments.
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Editorial assessment produced from the figures on this page and public sources; it is an informed reading, not a military assessment or a prediction.
Frequently Asked Questions
Which country has more armored vehicles, Spain or United States?
United States has a larger ground force with 171,065 vehicles compared to Spain's 6,152 vehicles.
Which country has more tanks, Spain or United States?
United States operates more main battle tanks with 2,666 compared to Spain's 274.
Which army has more infantry fighting vehicles, Spain or United States?
United States has 7,724 infantry fighting vehicles compared to Spain's 225.
Which country has more armored personnel carriers, Spain or United States?
United States operates 6,863 APCs compared to Spain's 2,038.
Which country has more artillery systems, Spain or United States?
United States fields 4,930 artillery systems (self-propelled, towed, and MLRS) compared to Spain's 234.
How do the Spain and United States armies compare in size?
United States's army is 27.8 times larger than Spain's in terms of total vehicles (171,065 vs 6,152).