1st Provisional Marine Brigade, a United States Marine Corps ad hoc infantry brigade active in World War II and the Korean War
United States Marine Corps | Provisional Irish Republican Army | marine | Louis Mountbatten, 1st Earl Mountbatten of Burma | Horatio Nelson, 1st Viscount Nelson | Herbert Kitchener, 1st Earl Kitchener | Charles Cornwallis, 1st Marquess Cornwallis | 1st United States Congress | Frederick Roberts, 1st Earl Roberts | Bernard Montgomery, 1st Viscount Montgomery of Alamein | brigade | William Cecil, 1st Baron Burghley | Robert Harley, 1st Earl of Oxford and Earl Mortimer | Marine | George Villiers, 1st Duke of Buckingham | Thomas Wentworth, 1st Earl of Strafford | marine (ocean) | William Pitt, 1st Earl of Chatham | Joseph Lister, 1st Baron Lister | Robert Baden-Powell, 1st Baron Baden-Powell | Marine (ocean) | Marine Corps Recruit Depot Parris Island | John Scott, 1st Earl of Eldon | Henry Brougham, 1st Baron Brougham and Vaux | Edward Seymour, 1st Duke of Somerset | Charge of the Light Brigade | Robert, 1st Earl of Gloucester | Guy Carleton, 1st Baron Dorchester | Garnet Wolseley, 1st Viscount Wolseley | Douglas Haig, 1st Earl Haig |
1/6 deployed during May to July 1941 to Reykjavík in Iceland and was re-assigned to the 1st Provisional Marine Brigade.
From May to July 1941 2/6 reassigned to the 1st Provisional Marine Brigade and deployed to garrison Reykjavík, Iceland against possible German invasion.