It has to date not been examined in-depth what correlative rights and obligations the breach of an erga omnes obligation or an erga omnes right may entail. In his Separate Opinion in the Gabčíkovo-Nagymaros case, Judge Weeramantry devotes one section to the legal consequences of the involvement of erga omnes obligations in inter partes judicial procedures. This editorial analyses the relevant parts of Judge Weeramantry's Separate Opinion and explores the impact it may have on future litigation involving erga omnes issues.
