The
Triple Alliance was a military alliance among
Germany,
Austria–Hungary, and
Italy. It lasted from 20 May 1882 until
World War I in 1914. Each member promised mutual support in the event of an attack by any other
great power, or, in the case of Germany and Italy, an attack by
France alone. In a supplementary declaration, Italy specified that its undertakings could not be regarded as being directed against
Great Britain. Shortly after renewing the Alliance in June 1902, Italy secretly extended a similar guarantee to France. By a particular agreement, neither Austria–Hungary nor Italy would change the
status quo in the
Balkans without previous consultation.