The interval between the award and the accomplishment it recognises varies from discipline to discipline. The Literature Prize is typically awarded to recognise a cumulative lifetime body of work rather than a single achievement. The Peace Prize can also be awarded for a lifetime body of work. For example, 2008 laureate Martti Ahtisaari was awarded for his work to resolve international conflicts. However, they can also be awarded for specific recent events. For instance, Kofi Annan was awarded the 2001 Peace Prize just four years after becoming the Secretary-General of the United Nations. Similarly Yasser Arafat, Yitzhak Rabin, and Shimon Peres received the 1994 award, about a year after they successfully concluded the Oslo Accords. A recent controversy was caused by awarding the 2009 Nobel Peace Prize to Barack Obama during his first year as US president.
Please list the Peace Nobel Prize award winners according to the text
Martti Ahtisaari, Kofi Annan, Yasser Arafat, Yitzhak Rabin, Shimon Peres, Barack Obama