Step 1: Understanding the aims of the UN.
The United Nations (UN) was founded with the aim to promote peace, security, friendly relations among nations, and respect for international law. However, ensuring economic development for minorities is not one of its principal aims.
Step 2: Analysis of options.
- (1) To safeguard peace and security: This is a principal aim of the UN as stated in its Charter.
- (2) Developing friendly relations among nations: This is a core goal of the UN.
- (3) To uphold respect for international law: Promoting international law is central to the mission of the UN.
- (4) To ensure economic development for minorities: While the UN works on economic development, this is not specified as one of the principal aims in its founding Charter.
Step 3: Conclusion.
The correct answer is (4) To ensure economic development for minorities, as this is not a principal aim of the UN.