Warscape
Simulated matchup · a model, not a forecast

🇭🇷 Croatia vs 🇸🇮 SloveniaMilitary comparison, and what happens if they fight

If Croatia attacked Slovenia today, with no allies joining on either side, this is what the WARSCAPE engine produced: Defender holds after 344 days.

How the two militaries compare

Croatia keeps 2.5 times as many soldiers under arms. Croatia has 1.8 times the tanks. Croatia has combat aircraft and Slovenia has none. Croatia spends 1.7 times as much on defence. Public, country-level figures from the data snapshot the run was pinned to (2026.09). See data sources for where each number comes from.

CroatiaSlovenia
15,000Active soldiers6,000
20,000Reservists1,500
70Tanks40
100Artillery20
12Combat aircraft0
30Helicopters10
$1.5bnDefence budget$0.9bn
3.9mPopulation2.1m

What the war cost

Croatia
attacked
2,058
soldiers killed or wounded
6
tanks destroyed
8
aircraft lost
0
land changed hands
37%
support at home, at the end
Slovenia
defended
251
soldiers killed or wounded
3
tanks destroyed
0
aircraft lost
0
land changed hands
55%
support at home, at the end

What decided it

01
Mobilisation helped Croatia
Reservists mobilised: 76,556 vs 1,286.
02
Deployed combat power helped Croatia
Average deployed combat power: 6 vs 2 model units.
03
Air situation helped Croatia
Average share of air control for Croatia: 64%.
04
Logistics helped Croatia
Average front-line supply efficiency: 97% vs 74%.
05
Political cohesion helped Slovenia
Average cohesion: 51% vs 63%.
Think it would go differently?

This run assumed no allies, winter, full mobilization for the attacker and partial for the defender, and no nuclear weapons. Change any of that and watch it play out day by day on the map.

Other borders in this neighbourhood

🇭🇺 Hungary vs 🇭🇷 Croatia
Defender holds after 267 days
🇷🇸 Serbia vs 🇭🇷 Croatia
Defender holds after 258 days
🇭🇺 Hungary vs 🇸🇮 Slovenia
Ceasefire, front frozen after 351 days
🇮🇹 Italy vs 🇸🇮 Slovenia
Side A achieves its objectives after 65 days
🇦🇹 Austria vs 🇸🇮 Slovenia
Defender holds after 365 days
🇭🇷 Croatia vs 🇧🇦 Bosnia & Herz.
Defender holds after 337 days
All matchups →
After 344 simulated days the conflict between Croatia and Slovenia ended with: Defender holds (prolonged stalemate). Aggregate personnel losses within the model: 2,058 (Croatia) and 251 (Slovenia). This page reports one seeded run of a model on public, aggregate data. It is not a prediction, and no operational information is used.

Model-generated simulation on public, country-level data. Not a prediction. No operational, classified or real-time information is used.