( CNN ) -- The Navajo Nation will mark history Friday when it officially announces a $ 554 million settlement from the U.S. government , putting an end to years of litigation . The landmark agreement stems from a 2006 lawsuit in which the nation says the U.S. mismanaged trust fund assets dating back to 1946 . `` It 's monumental . This is the largest trust responsibility award from the United States in the history of Indian country . It will never completely redress the wrongs done to prior generations , but it 's going to allow some opportunities for future generations , '' said Dana Bobroff , deputy attorney general for the nation . In May , an agreement was reached between members of the Navajo Nation , the U.S . Interior and Justice departments and the Bureau of Indian Affairs and will be sealed with a signing ceremony Friday at Window Rock Tribal Park in Arizona . Best places to experience Native American culture . Acting U.S. Assistant Attorney General Sam Hirsch , who will attend Friday 's ceremony , said President Obama has long worked to strengthen ties between the United States and the Navajo Nation , adding that `` it reflects my personal commitment to resolving long-standing lawsuits rather than wasting the time and resources of both the United States and Indian tribes in contentious litigation . '' According to the Department of Justice , the U.S. settled with 41 tribes for about $ 1 billion in April 2012 . Since then , the government has focused on resolving other trust accounting and mismanagement cases . Photographer shows what Native Americans really look like . LoRenzo Bates , speaker pro tem for the Navajo Nation Council , says that `` this is not only a victory for the Navajo Nation in terms of being able to get through this , but it also sends a word out to any Indian country tribes that are in the same situation as the Navajo Nation . There is a solution to what they are having to deal with . '' With over 300,000 members , the Navajo Nation is the largest Indian tribe in the U.S . It has the largest reservation in the United States , spreading 27,000 square miles over Arizona , New Mexico and Utah , with an additional 14 million acres of trust land leased out to various agricultural endeavors . Reclaiming the Native American voice .
The Navajo Nation says the court mismanaged trust fund funds dating back to 1946 . The landmark ruling stems from a 2006 lawsuit . With over 300,000 members , the Navajo Nation is the largest Indian tribe in the U.S .