Andrew Mlangeni Regiment

The Andrew Mlangeni Regiment (formerly the South African Irish Regiment) is a reserve infantry regiment of the South African Army.

Although all the regular units of Irish origin in the British Army have served in South Africa at some time during its colonial involvement in South Africa, the first autonomous South African units shaped by Irish influences were the Cape Town Irish Volunteer Rifles (raised by a Major O'Reilly in 1885) and Driscoll's Scouts (raised by Capt D.P. Driscoll during the Second Anglo-Boer War of 1899 – 1902).

However, an Irish Brigade also fought on the side of the Boer republics.

The South African Irish was formed at the outbreak of World War I in August 1914 when three officers (Major George Twomey, Captain J. Jeoffreys and a Captain MacDonald) met at the Irish Club in Johannesburg to raise an Irish regiment from among the citizens of Johannesburg and its surrounding areas.

After a request to The Union Defence Force (UDF) Headquarters, authority was granted to form the regiment and Lieutenant-Colonel Brennan was appointed as its first commanding officer. Major Twomey was appointed as its recruiting officer. The wife of General Louis Botha (a lady of Irish descent with the maiden name of Emmett) was appointed as the regiment's first honorary colonel.

Sources are not clear on the official date of formation of the South African Irish, but it is either 9 September or 1 December 1914. In any case, the battalion, consisting of six companies, first formed up at Booysens Camp in Johannesburg on the former date.

After training, the regiment was made part of 4 South African Infantry Brigade (part of the Northern Force) and embarked from Cape Town to the (then) German South-West Africa on 21 December 1914. On 25 December 1914, the Force landed at Walvis Bay and went into action immediately. The Regiment itself first came into contact with their German enemy on the following day, barely three months after it was raised.

At the end of the campaign in South-West Africa, Active Citizen Force regiments were by law not permitted to proceed to other theatres of war as such. Special war service units were thus created to fight in East Africa and Europe. Volunteers from the South African Irish Regiment were formed, together with members of other units, into the composite 9 South African Infantry Regiment. 9 SAI campaigned in East Africa, where it earned the honours Kilimanjaro and East Africa 1916–17.