Military Strength: 
Guinea-Bissau vs 
Sierra Leone
Guinea-Bissau (ranked #150 globally) holds a stronger overall military position than Sierra Leone (#156) on the ATLAS Index. Sierra Leone fields 9,000 active troops — 2.2:1 Guinea-Bissau's 4,000. Guinea-Bissau allocates $0.03B to defense compared to $0.03B for Sierra Leone.
ATLAS (Aggregate Total of Land, Air and Sea strength) Index face-off Full ranking →
Guinea-BissauWorld #150
6.2
ATLAS Index / 100
Guinea-Bissau leads overall, ahead on 1 of 6 pillars
Sierra LeoneWorld #156
4.9
Guinea-Bissau
Sierra Leone
Pillar scores 0–100 (weight under each label) over a headline figure from that domain · each conventional pillar read after its branch's availability proxy · Methodology
Key figures
| Guinea-Bissau | Sierra Leone | Ratio | |
|---|---|---|---|
| Defense budget | $27M | $35M | 🇸🇱 1.3× |
| – share of GDP | 1.2% | 0.5% | 🇬🇼 2.4× |
| Active personnel | 4,000 | 9,000 | 🇸🇱 2.2× |
| Combat aircraft | 0 | 0 | — |
| Warships | 0 | 0 | — |
| – submarines | 0 | 0 | — |
| Main battle tanks | 10 | 0 | 🇬🇼 |
| Nuclear warheads | 0 | 0 | — |
Show full breakdown · 11 more rowsHide the 11 extra rows
| Reserve troops | 0 | 0 | — |
| Paramilitary forces | 0 | 0 | — |
| Military aircraft (all types) | 0 | 1 | 🇸🇱 |
| – helicopters | 0 | 1 | 🇸🇱 |
| Budget share of govt spending | — | — | — |
| Budget per capita | $12 | $4 | 🇬🇼 3.0× |
| Population | 2.2M | 8.6M | 🇸🇱 3.9× |
| GDP | $2.2B | $7B | 🇸🇱 3.1× |
| GDP per capita | $1,008 | $807 | 🇬🇼 1.2× |
| Land area | 28,120 km² | 71,620 km² | 🇸🇱 2.5× |
| Coastline | 350 km | 402 km | 🇸🇱 1.1× |
Defense budget history Guinea-Bissau ×1.1 · Sierra Leone ×1.7 since 2020
Military personnel history
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Frequently Asked Questions
Who has more military personnel, Guinea-Bissau or Sierra Leone?
Sierra Leone has approximately 9,000 active military personnel compared to Guinea-Bissau's 4,000, giving Sierra Leone a 2.2:1 numerical advantage.
Which country spends more on defense, Guinea-Bissau or Sierra Leone?
Sierra Leone has a larger defense budget at $35 million compared to Guinea-Bissau's $27 million annually.
Do Guinea-Bissau and Sierra Leone have nuclear weapons?
Neither Guinea-Bissau nor Sierra Leone currently possesses nuclear weapons.
How do the tank forces of Guinea-Bissau and Sierra Leone compare?
Guinea-Bissau operates 10 main battle tanks compared to Sierra Leone's 0. Tank numbers reflect both active inventory and reserves.