Understanding the American War of Independence Manifestations

National Self-Determinism

This refers to the desire of the American colonies to govern themselves and determine their own political future, free from external control by Great Britain. The colonists felt they were distinct enough to rule themselves.

Assertion of Radical Liberal Principles

The war was heavily influenced by Enlightenment thought, promoting ideas like natural rights (life, liberty, property), popular sovereignty (the government's power comes from the people), and the right to revolution if the government becomes tyrannical. These were considered 'radical' as they challenged the existing monarchical systems.

Belief in Liberal Propositions

This overlaps with the previous point but emphasizes the specific proposals derived from liberal philosophy, such as representative government, consent of the governed, and the protection of individual liberties. The colonists sought to establish a society based on these principles.

Conclusion

Since the American War of Independence was indeed a manifestation of the colonies' desire for self-governance (National Self-Determinism), their embrace of new political ideas challenging monarchy (Radical Liberal Principles), and their commitment to fundamental rights and representation (Liberal Propositions), all the listed factors were relevant.

Therefore, the most comprehensive answer is that the war was a manifestation of all the above.