The AccelNet-MultiNet program was launched as an NSF-supported, joint effort led by the Network Science Institutes of Northeastern University (NetSI) and Indiana University (IUNI) to expand the international community of scientific discovery and training focused around the exploration of multilayer network science. NetSI and IUNI have partnered with 4 key institutions ISI (Italy), CEU (Hungary/Austria), UB, (Spain) and CPT (France)‍, to build joint a US-Europe Fellowship program for young scho