In 1958, a commission was constituted to select a suitable site for the national capital with particular emphasis on location, climate, logistics and defence requirements along with other attributes.

In 2009 the regiment was again reorganised in line with current defence requirements and became 254 Medical Regiment.

In January 1942, the Manpower Directorate was set up "to ensure the organisation of Australians in the best possible way to meet all defence requirements."

He was then promoted to commodore and then rear-admiral and became director of defence operational requirements and finally military deputy to the head of defence sales.

Depending on defence requirements, the positions of bastions are irregularly spaced with enormous embrasures for cannon.

Extensive expansion and reconstruction work would be needed to meet the defence requirements of the new capital for it to withstand the sporadic Mongol intrusions from the north.

At the place of the castle was a fortress where the population would gather during perilous times or times when the defence requirements reached to an extreme level.

It works with the MoD and laboratories to provide products and solutions for the defence requirements of the country.

Primary aim of this institute is to provide Higher Education in Science and Technology related to defence requirements in general and weapon systems in particular.

In devising and implementing an agreed plan with its customers, DIO provides a corporate and long-term view of defence requirements consistent with the Estate Strategy.