Question: When did the man who commanded the Task Force Tarawa retire? 

Context paragraphs:
Task Force Leatherneck: Task Force Leatherneck or MEB-Afghanistan is a Marine Air-Ground Task Force currently operating in Helmand Province, Afghanistan.  The name was originally given to the 2nd Marine Expeditionary Brigade during its 2009-10 for Operation Enduring Freedom as part of Regional Command South.  It is also the name used by the 1st Marine Division and 2nd Marine Division during their deployments to Afghanistan.  Task Force Leatherneck is commanded by Brigadier General Lawrence D. Nicholson with the command element at Camp Leatherneck.  The task force took over the battlespace from Special Purpose MAGTF-Afghanistan on May 29, 2009.  In July 2009, Task Force Leatherneck participated in Operation Strike of the Sword (Operation Khanjar), the largest Marine Corps operation since the Battle of Fallujah, and then in February 2010 an even larger battle, the largest of the Afghan Campaign, Operation Moshtarak (Operation Together).

Urban Search and Rescue Utah Task Force 1: Urban Search and Rescue Utah Task Force 1 (UT-TF 1) is one of 28 Federal Emergency Management Agency (FEMA) Urban Search & Rescue Task Forces in the United States.  The task force is based in Salt Lake City, Utah and is managed by the Unified Fire Authority.  Activation of the task force is accomplished by the State of Utah, or FEMA for rapid deployment of the Task Force, modular or single US&R resources.  The task force is self-sufficient for up to 72 hours and includes physicians, search dogs, heavy rescue technicians firefighters and paramedics, and structural engineers.  The Task Force manages 6.3 million dollars in specialized vehicles and equipment that is maintained by personnel trained by FEMA.

Joint Interagency Task Force West: Joint Interagency Task Force West (JIATF-W, or JIATF West) is a standing United States military joint task force with the mission of combating drug-related transnational organized crime in the Indo-Asia-Pacific.  JIATF West's area of responsibility (AOR) is that of United States Pacific Command (USPACOM).  JIATF West is one of two Joint Interagency Task Forces with a counter-narcotics mission.  The other is Joint Interagency Task Force South.  The task force is run as USPACOM's "executive agent" for counterdrug activities providing support to partner nation law enforcement.  Approximately 166 active duty and reserve U.S. military forces; Department of Defense civilian employees; contractors; and U.S. and foreign law enforcement agency personnel are members of the task force.

Richard F. Natonski: Richard F. Natonski is a retired United States Marine Corps lieutenant general whose last assignment was as the Commander of U.S. Marine Corps Forces Command.  He assumed the post in August 2008, having previously served as the United States Marine Corps Deputy Commandant for Plans, Policies and Operations from 2006.  He retired at Marine Barracks 8th & I on 8 September 2010.

Bangalore University Task Force: Bangalore University Task Force on Teacher Education (simply known as BU Task Force) is a high-power committee constituted in May 2012 to inspect the quality and functioning of teacher education colleges under Bangalore University.  The Task Force, chaired by the University's Academic Council member Mr. H. Karan Kumar, submitted an interim report on the quality & functioning of 7 M.Ed.  Colleges during August 2012, which was unanimously accepted by the Academic Council in its meeting held on 29 August 2012.  The Task Force recommended that the admission of students to all the 7 M.Ed.  colleges be suspended for the academic year 2012 - 13.  Also, a 205-page interim report on the quality & functioning of 99 Bachelor in Education (B.Ed) colleges was submitted by the Task Force during November 2012, which was unanimously approved by both Academic Council and the Syndicate during their extraordinary meetings held on 30 November 2012 and 12 & 17 December 2012 respectively.  The report recommended disaffiliation of 55 B.Ed colleges for gross irregularities in academic, administrative functioning and non-compliance with National Council for Teacher Education (NCTE) norms.  The Task Force is functional till 30 June 2013.

Task Force Shield: Task Force Shield was set up by the Coalition Provisional Authority in 2003 to provide security for Iraq's critical oil infrastructure.  The task force was originally composed of a small team of American military personnel, contractors from the UK-based firm Erinys International, and Iraqis hired, trained and supervised by Erinys.  The Iraqi force trained by Erinys was called the Oil Protection Force (OPF).  After the Coalition Provisional Authority transferred control of Iraq to the Interim Government, the OPF became a subordinate element of Iraq's Ministry of Oil.  The Ministry of Oil did not renew the Erinys contract.  Task Force Shield was disbanded in 2005.  In April 2006, the Office of the Special Inspector General for Iraq Reconstruction published a report on the activities of Task Force Shield.  The report determined that Task Force Shield was ultimately unsuccessful and found that there were indications of potential fraud.

President's Task Force on 21st Century Policing: The President's Task Force on 21st Century Policing was created by an executive order signed by United States President Barack Obama in December 2014.  Obama created it in response to the unrest in Ferguson, Missouri following the shooting of Michael Brown by a police officer there.  The eleven members of the task force include academics, law enforcement officials, and civil rights activists.  The co-chairs of the task force are Philadelphia police commissioner Charles H. Ramsey and George Mason University professor of criminology, law and society Laurie Robinson.  On March 2, 2015, the task force released its interim report, and on May 18 of that year, it released its final report.  The final report called for, among other things, more data on police shootings and on civilians' attitudes toward the police, as well as for the removal of policies that reward police who produce more arrests and convictions.  In another report released a year later, the task force released an update saying that at least nine states and cities in the United States had adopted the task force's recommendations.  However, because there are 18,000 police departments in the United States, some members of the task force, as well as President Obama himself, have expressed frustration with the slow rate at which its recommendations have been adopted.

Task Force Tarawa: Task Force Tarawa (TFT) was the name given to the 2nd Marine Expeditionary Brigade during the 2003 invasion of Iraq.  They were a Marine Air-Ground Task Force commanded by Brigadier General Richard F. Natonski that was attached to the I Marine Expeditionary Force during the course of the invasion and were most notable for their participation in the heavy fighting in the city of an-Nāṣiriyyah.  During their time supporting , the task force suffered 23 Marines killed in action.

Task Force 1-41 Infantry: Task Force 1-41 Infantry was a U.S. Army heavy battalion task force which took part in the Gulf War of January – March 1991.  Task Force 1-41 Infantry was the first coalition force to breach the Saudi Arabian border on 15 February 1991 and conduct ground combat operations in Iraq engaging in direct and indirect fire fights with the enemy on 17 February 1991.  It was the spearhead of VII Corps.  It consisted primarily of the 1st Battalion, 41st Infantry Regiment, 3rd Battalion, 66th Armor Regiment, and the 4th Battalion, 3rd Field Artillery Regiment all being part of the 2nd Armored Division (Forward), based at Lucius D. Clay Kaserne, 24 km north of Bremen, in the Federal Republic of Germany.  Task Force 1-41 was commanded by Lieutenant Colonel James L. Hillman.

Amarah Air Base: Amarah Air Base is a former Iraqi Air Force base in the Maysan Governorate of Iraq.  It was captured by Task Force Tarawa, United States Marine Corps on 8 March 2003, during the 2003 invasion of Iraq.  After the invasion it was used by British Army logistics units.

Supporting paragraphs: Task Force Tarawa Richard F. Natonski
Answer: 8 September 2010