The Cáin Adomnáin (Law of Adomnáin) established in 697, also known as the Lex Innocentium (Law of Innocents), advocates the protection of civilians during times of war.

Lex Innocentium, 21st century was launched on International Peace Day, 21 September 2024, as a reaffirmation of this law, originally signed by a collection of churchmen and secular notables meeting at the Synod of Birr in 697. The launch of Lex Innocentium, 21st century took place near Birr at Redwood Castle in Lorrha, Co. Tipperary.

A short film depicting highlights of the launch may be of interest to Friends.