Answer :
The type of government policy that President Roosevelt's speech on December 8th, 1941, requesting Congress for a declaration of war against Japan exemplifies is:
1. **Foreign Policy**: This speech and the subsequent declaration of war can be considered a part of the United States' foreign policy. Foreign policy involves a government's strategy in dealing with other nations and international affairs.
2. **War Policy**: President Roosevelt's call for a declaration of war signifies a specific aspect of foreign policy known as a war policy. A war policy dictates a nation's approach to engaging in or responding to armed conflict with other countries.
3. **Executive Branch Authority**: This action highlights the authority and role of the executive branch of the U.S. government in shaping and conducting foreign and war policies. The president, as the head of the executive branch, plays a critical role in formulating and implementing such policies.
In summary, President Roosevelt's speech requesting Congress for a declaration of war against Japan reflects elements of foreign policy, war policy, and the exercise of executive branch authority in matters of international relations and armed conflict.