Answer
Nicolae Petrescu-Comnen served as an agent for the Romanian National Committee during his later years. This committee was established in 1918 to represent the interests of Romanians living outside the borders of Romania, particularly in Transylvania, which was then part of the Austro-Hungarian Empire. Petrescu-Comnen played a key role in advocating for the unification of Transylvania with Romania, which was achieved in 1918.