Update of customary IHL database – November 2026

New update of the customary IHL database

We have just updated the customary IHL database to include to include additional practice from from Cameroon, Sweden and Uruguay.

The database contains:

• the 161 rules of customary IHL identified in the 2005 ICRC customary IHL study,
• the practice underlying that study,
• regular updates of the study's practice part.