Relationship dossier
Guinea
Sierra Leone
Relationship assessment
Regional cooperation coexists with an unresolved dispute over Yenga and recurring border tensions.
Guinea toward Sierra Leone
-15Guinea participates with Sierra Leone in regional cooperation through the Mano River Union. Its continued security presence in the disputed Yenga area, which Sierra Leone claims, is a significant source of bilateral friction.
Sierra Leone toward Guinea
-5Sierra Leone participates with Guinea in the Mano River Union and has pursued its claim to Yenga through diplomatic engagement. The dispute over Guinea’s presence in the area remains a source of tension.
Overall relationship
-5The relationship combines regional cooperation through the Mano River Union with a persistent territorial dispute over Yenga. Guinea’s security presence there and Sierra Leone’s continuing claim weigh against closer bilateral ties; border-related engagement provides a channel for managing tensions.
How to read these scores
Scores are rough judgments, not objective measurements or current verification. Directional scores describe government policy and conduct, not public opinion. The overall score is an independent estimate, never an average.
- −100
- Extreme sustained hostility
- −50
- Substantially adversarial
- 0
- Mixed or neutral, supported by knowledge
- +50
- Substantially cooperative
- +100
- Exceptionally close sustained partnership
“Not assessed” means there is no recorded score. Pair existence makes no claim about diplomatic recognition or established relations.
Relationship context
Overview
Guinea and Sierra Leone have regional cooperation through the Mano River Union, but their relationship is affected by the unresolved Yenga border dispute. Guinea has maintained a security presence in the disputed area, while Sierra Leone continues to contest Guinea’s control. Border incidents have also prompted bilateral engagement, leaving a mixed relationship with a significant territorial source of friction.
Areas of tension
- The unresolved dispute over Yenga and Guinea’s security presence in the area.
- Recurring border incidents and disagreements over border security.
Key developments
Guinea and Sierra Leone engaged diplomatically after a border incident involving Guinean soldiers in Sierra Leone.
Major uncertainties
- The current status of bilateral efforts to resolve the Yenga dispute is unclear.
- The scope and implementation of joint border-security arrangements are uncertain.