The Army Reserve is the land component of the Reserve Defence Forces (RDF)

Reserve Defence Forces

The Reserve Defence Forces is the title given to the reserve components of the Irish Defence Forces. It comprises the Army Reserve and the Naval Service Reserve ....

. It is the second line reserve of the Army

Irish Army

The Irish Army, officially named simply the Army is the main branch of the Defence Forces of Ireland. Approximately 8,500 men and women serve in the Irish Army, divided into three infantry Brigades...

. The Army Reserve is a part-time, fully voluntary organisation, and is one of two elements of the Reserve Defence Forces of Ireland

Republic of Ireland

Ireland , described as the Republic of Ireland , is a sovereign state in Europe occupying approximately five-sixths of the island of the same name. Its capital is Dublin. Ireland, which had a population of 4.58 million in 2011, is a constitutional republic governed as a parliamentary democracy,...

, the other element being the Naval Service Reserve

Naval Service Reserve

The Naval Service Reserve is the reserve force of the Irish Naval Service. It is one of two elements of the Reserve Defence Forces of the Defence Forces of Ireland, the other element being the Army Reserve...

.

It was established on 1 October 2005 to replace and reorganise the previous reserve organisation, and to improve training and courses similar to those of the Permanent Forces.