Answer: The US involvement in international conflicts and organizations affects its domestic policy very critically in several ways, such as economically, in international relations, etc.
Explanation: To elaborate some of the stated points, we have:
- Economically: All countries need money, and have budgets in order to run the government smoothly, so is the case with the US. US provides financial support to countries and organizations in conflict, and sometimes even with military support. Which, on a larger view, subtracts the finances for the US domestic policies.
- International Relations: The US involvement in international conflicts may disturb the relation between the US and other countries, as some countries might be in favor of the involvement whereas some might not. Thus, in some cases, US have also seen economical sanctions by other countries, internal diplomatic disputes, etc. Which, gradually, can affect the US domestic policy.
Thus, these involvements can critically affect the US domestic policy.