A military staff, often referred to as General Staff, Army Staff, Navy Staff or Air Staff within the individual services, is a group of officers and enlisted personnel that provides a bi-directional flow of information between a commanding officer and subordinate military units. A staff also provides an executive function which filters information needed by the commander, or shunts unnecessary information to a more appropriate tasker, handling the matter which would be an unnecessary distraction for the Commanding Officer at a more appropriate level.

In a generic command staff, more seasoned and senior officers oversee staff sections of groups organized by the needs of the unit, Senior Enlisted Personnel task personnel in the maintenance of tactical equipment and vehicles. Senior Analysts are tasked with the finalizing of reports, and enlisted personnel participate in the acquisition of information from subordinate staffs and units. This hierarchy places decision making and reporting under the auspices of the most experienced personal and maximizes information flow into and pertinent information sent out of the command overall clarifying matters overall, and freeing up the most senior members of the command at each level for decision making and direction of further research or information gathering, perhaps requiring men to put their lives at risk to gather additional intelligence.

Arjun Singh (5 November 1930 – 4 March 2011) was an Indian politician from the Indian National Congress party. He was the Union Minister of Human Resource Development in the Manmohan Singh cabinet from 2004 to 2009. He died on 4 March 2011 due to a heart attack.

Arjun Singh's father, Rao Shiv Bahadur Singh, also a Congress politician, was Minister of Industry under Jawaharlal Nehru prior to being convicted in 1950 of forging documents and subsequently dying in prison.

Arjun Singh was married to Saroj Devi of Pratapgarh near Amarpatan in Satna, M.P. and the couple have two sons and a daughter. Abhimanyu Singh, their first son, is a businessman in Bangalore. Their second son, Ajay Singh 'Rahul', is an Indian National Congress politician and presently leader of opposition of Madhya Pradesh state assembly, MP MLA and has been a minister in M.P. Government. Their daughter Veena Singh fought unsuccessfully as an independent candidate from Sidhi Lok Sabha constituency in 15th Lok Sabha elections. Young bollywood actor Arunoday Singh is his grandson.