The rise of nationalist movements in Nigeria was significantly influenced by World War II and the Atlantic Charter. Before World War II, Nigeria was a British colony, and the colonial system limited the political and economic rights of the Nigerian people. However, during and after World War II, several factors contributed to the growth of nationalism in Nigeria.
First, World War II exposed Nigerians to ideas of freedom and self-determination as many Nigerians served in the war alongside British forces. They became aware of the universal aspirations for freedom and were inspired to seek similar liberties for themselves at home. The experiences during the war helped many Nigerians realize the disparities in treatment and rights between themselves and their colonial rulers, leading to an increased desire for independence.
Furthermore, the Atlantic Charter, a pivotal policy statement issued during World War II by the United States and the United Kingdom, advocated for the rights of all people to self-determination. Although initially aimed at nations opposing Axis powers, the principles of the Charter resonated with colonized people worldwide, including Nigerians. They seized upon the ideals of self-governance and equality as an impetus to challenge colonial rule and to demand political and economic autonomy.
Consequently, the combination of wartime experiences and the principles espoused in the Atlantic Charter propelled Nigerian leaders and the general population to organize and push for independence from British control, leading to the rise of nationalist movements in the country.