Certainly East Timor and possibly Afghanistan.
Peacekeeping has been proven to work in places like Lebanon, East Timor and Liberia. However, international affairs are highly complicated and not every peacekeeping operation would progress as smoothly as hoped. Sometimes the safety of the Peacekeepers has to be considered, and this is more often then not the reason for problems.
The US has been involved in several. Which one did you have in mind?
Canada is the primary North American nation known for its international peacekeeping efforts, participating in numerous United Nations peacekeeping missions since the 1950s. The United States has also engaged in peacekeeping operations, often in coalition with other nations, but its role has been more focused on military interventions rather than traditional peacekeeping. Mexico has participated in peacekeeping missions as well, although to a lesser extent compared to Canada.
an Australian family is a family that has been brought up to be an Australian.
There has been no Australian holocaust.
There has never been an Australian pope.
It didn't. There is no Australian pledge, and there has never been an Australian pledge.
Never. No Australian Prime Minister has ever been assassinated
As of 2011, no. No Australian Prime Minister has been threatened in such a manner.
A complete answer would take more time than I have available, but see related link "United Nations Peacekeeping Missions, Past and Current" at the bottom, where you can find facts, figures (including contributing nations) for all United Nations peacekeeping operations. Bear in mind that peacekeeping operations are not solely a function of the United Nations, but have been conducted by the North Atlantic Treaty Organisation, the African Union, and the European Union.
The United Nations defines peacekeeping as "the deployment of international military and civilian personnel to a conflict area with the consent of the parties to the conflict in order to: stop or contain hostilities or supervise the carrying out of a peace agreement."While this definition serves as a useful reference point, no single definition of peacekeeping exists. Peacekeeping continues to evolve as new conflicts arise and demands to resolve them are increasingly placed on the UN. Peacekeeping is a demanding enterprise that requires the basic skills of a capable combat soldier and much more. Peacekeepers must be effective negotiators, be capable of standing firm in the face of hostile forces, and be prepared to endure privation. Since 1956, the number and scope of peacekeeping operations have increased exponentially. Over 750,000 military troops and civilian police from around the world, in addition to thousands of other civilians, have served as peacekeepers. There have been a total of 42 peacekeeping missions since the United Nation's inception, including 16 that are currently operational. Canada has always been a strong supporter of the United Nations and of peacekeeping, and has participated in almost every mission since its inception. The Canadian Armed Forces are recognized worldwide as being among the finest peacekeepers. In the related links below, I posted a list of the coutries ivolved in peacekeeping.
China has been a significant contributor to UN peacekeeping forces since the 1990s, becoming one of the largest troop contributors among the five permanent members of the UN Security Council. It provides personnel, financial support, and logistical resources to various peacekeeping missions around the world. Additionally, China has focused on enhancing the capacity of peacekeeping operations through training programs and the provision of equipment. This involvement reflects China's commitment to multilateralism and its growing role in global governance.