(I) International Laws and Conventions.
(ii) International Treaties and Agreements.
(iii) Dominance of powerful States.
(iv) Membership of International organizations e.g. UNO, OAU, (AU), etc.
(v) More economically advanced countries sometimes influence the exercise of sovereignty of poor countries.
(vi) External trade.
(vii) Diplomatic immunity.
(viii) Geographical location e.g. land locked countries, nearness to other States.
(ix) External Aids
(x) Inter dependence of States.
(xi) Religion and culture.