[1][3] Consular tribune for the first time in BC 401, Julius' colleagues were Lucius Valerius Potitus, Marcus Furius Camillus, Manius Aemilius Mamercinus, Gnaeus Cornelius Cossus, and Caeso Fabius Ambustus.
To pay for the levies, the military tribunes attempted to collect a war tax from the older men who would not be serving in the expeditionary forces.
[6] The year was further marked by the trial of Manius Sergius Fidenas and Lucius Verginius Tricostus, the two military tribunes whose conduct had resulted in the loss of the fortifications at Veii.
Julius, the only consular tribune not mentioned leading troops in the field, may have remained at Rome to see to domestic matters while his colleagues undertook their campaigns.
Stung by the brazen attack, the military tribunes Julius and Postumius quickly raised a volunteer force, and managed to overtake the raiding party near Caere, recovering much of the booty.
In order to atone for this offense, the consular tribunes, who were charged with carrying out the rites in question, were compelled to resign, and an interrex appointed until new elections could be held.