After Lenin's split with another senior Bolshevik leader, Alexander Bogdanov, in mid-1908, Kamenev and Grigory Zinoviev became Lenin's main assistants abroad.
Despois da ruptura de Lenin con outro vello bolxevique, Alexander Bogdanov, a mediados de 1908, Kamenev e Grigory Zinoviev chegaron a ser os principais axudantes de Lenin no exterior.