After the Cunaxa stalemate in late 401 BCE, the satrap Tissaphernes negotiated a truce promising to escort the leaderless Greek army home. Three weeks into the joint march, near the Greater Zab river in northern Mesopotamia, he invited the five Greek generals — Clearchus, Proxenus, Menon, Agias, and Socrates of Achaea — to a parley to resolve growing tensions. The generals entered his tent with twenty captains and a small bodyguard. At a prearranged signal Persian troops slaughtered the escort outside; the generals were arrested, sent to Artaxerxes, and executed. The Ten Thousand were stranded leaderless deep within Achaemenid territory.