Translate the following English sentence to French:
"It is essential for these regions to be able to benefit fully from INTERREG III, just like all the other regions in the Union, especially now that the REGIS programme dedicated to such isolated regions has been dropped."
Ces régions doivent pouvoir bénéficier pleinement d' Interreg III, comme l' ensemble des autres régions de l' Union, d' autant que le programme REGIS, qui leur était affecté, est maintenant abandonné.