SARAJEVO, Bosnia-Herzegovina (CNN) -- For the last time, spokesmen for the United Nations Protection Force for Bosnia-Herzegovina gave a press briefing Tuesday.

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Her career in the United Nations includes assignments in financial and human resource management of the United Nations Volunteers Programme, the United Nations Protection Force in Croatia and the United Nations Development Programme.

UN: Secretary-General

Earlier in the day, the formal changing of guard ceremony between the United Nations Protection Force and NATO took place a little later than scheduled, thanks to thick tufts of fog that delayed the arrival of the NATO commander.

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