1. False.
The United Nations uses its peacekeeping forces as well as trade sanctions in response to international conflicts, not only in regard to human rights issues. For instance, UN sanctions against arms sales exist against a number of nations deemed to be security threats (such as Iran or North Korea). And, as publicized by the UN itself, peacekeeping forces may be used for purposes such as: monitoring a disputed border; providing security during elections, assisting in-country military personnel with training and support , assisting former adversaries in implementing peace agreements; that they have signed, etc.
2. False
The Universal Declaration of Human Rights is intended as a universal agreement, common to all countries signing it. It is true that an American woman, Eleanor Roosevelt (wife of President Franklin Roosevelt), chaired the commission that developed the Universal Declaration on Human Rights. But the commission was made up of representatives with different legal and cultural backgrounds from all regions of the world. And the Declaration was proclaimed as an agreement by the full United Nations General Assembly when it was adopted in 1948, "as a common standard of achievements for all peoples and all nations" (according to the UN's own documents).