Brigadier General Neary was born in Boston, Massachusetts. He graduated from the Virginia Military Institute and was commissioned a Second Lieutenant in May 1988.
A Career Infantry Officer, Brigadier General Neary served with First Battalion, First Marines as a rifle platoon commander and 81mm mortar platoon commander where he deployed on two WestPac deployments and participated in Operation DESERT SHIELD/DESERT STORM. He served as a Company Commander and Operations Officer in Third Battalion, Third Marines in Kaneohe Bay, Hawaii and supported two deployments on the Unit Deployment Program to Okinawa.
From 2000 to 2003, Brigadier General Neary commanded Recruiting Station New Jersey, and in July 2004 he assumed command of Third Battalion, Eighth Marines. He led the battalion in combat during Operation IRAQI FREEDOM III (Fallujah) and Operation IRAQI FREEDOM V (Ramadi). From June 2010 to July 2012, Brigadier General Neary commanded the Fourth Marine Regiment.
Brigadier General Neary's instructor and staff assignments include The Basic School as a tactics instructor and student platoon commander. He served as the Future Operations Officer of the 4th Marine Expeditionary Brigade (AT) and as the Plans and Executive Officer for 8th Marines in support of Operation SECURE TOMORROW in Haiti. He also served as a Plans Observer Trainer with the Joint Warfighting Center J7 in Suffolk, Virginia and as the Branch Chief of the Programs Assessment Branch, Programs and Resources, HQMC. Brigadier General Neary served as the Deputy Commanding General, Marine Corps Combat Development Command & Assistant Deputy Commandant for Combat Development & Integration from October 2015 to June 2016. He served as the Deputy Director for Joint Training with the Joint Staff from June 2016 to July 2018. He assumed his current duties as the Deputy Commanding General, II Marine Expeditionary Force and Commanding General, 2d Marine Expeditionary Brigade in July 2018.
Brigadier General Neary has attended the Amphibious Warfare School and the Marine Corps Command and Staff College in Quantico, Virginia and the Naval War College in Newport, Rhode Island.
His personal decorations include the Legion of Merit with one star, two Bronze Stars with "V," Joint Meritorious Service Medal, Meritorious Service Medal, Navy and Marine Corps Commendation Medal with two stars and a third with Combat "V," and the Combat Action Ribbon with one star.