The younger Cyrus had personal views of self-aggrandizement which conflicted with the true interests of his nation, and was so bent on paving the way for his own ascent to sovereign power that he did not greatly care whether he injured his country or no.

As the accomplishment of his designs depended mainly on his obtaining a powerful land-force, he regarded a Spartan as preferable to an Athenian alliance; and, having once made his choice, he lent his ally such effectual aid that in two years from the time of his coming down to the coast the war was terminated.

Persian gold manned and partly built the fleet which conquered at AEgos-Potami; perhaps it contributed in a still more decisive manner to the victory.

Cyrus, by placing his stores at the entire command of Lysander, deserved and acquired the cordial good-will of Sparta and the Peloponnesians generally--an advantage of which we shall find him in the sequel making good use.
The gain to Persia from the dominion which she had reacquired over the Greeks of Asia was more than counter-balanced by a loss of territory in another quarter, which seems to have occurred during the reign of Darius Nothus, though in what exact year is doubtful.

The revolt of Egypt is placed by Heeren and Clinton in B.C.414, by Eusebius in B.C.411, by Manetho in the last year of Darius Nothus, or B.C.405.