Napoleon returned to Paris on December 5, 1797. The Directory, fearing his ambition, thought they could only keep him quiet by employing him, and gave him command of the so-called Army of England. But he was bent on the conquest of Egypt. He appears to have had something visionary in his temperament, and to have dreamed of founding a mighty empire from the stand-point of the East, the glow and glamour of which seem always to have had a certain fascination for him. He therefore employed the resources of the Army of England to prepare for an expedition to Egypt, and the Directory yielded to his wishes, partly no doubt, through the desire of getting him away from France. But their aggressive policy was at the same time fast bringing on another European war. The expedition sailed from Toulon on May 19, 1798, captured Malta from the Knights of St. John by treachery, and, escaping by great luck from the British fleet under Nelson, arrived at Alexandria on June 30th. The army was disembarked in haste, for fear lest Nelson should arrive, and on July 8th Napoleon marched on Cairo. He defeated the Mamelukes at Chebreiss and the Pyramids, and entered Cairo on July 24th. He then occupied himself with organizing the government of Egypt, but his position was rendered very hazardous by the destruction of the French fleet on August 1st by Nelson at the battle of the Nile, and he saw that his dream of founding an empire in the East could not be realized. He thought, however, that he might create a revolution in Syria, by the aid of which he might overthrow the Turkish power, and march in triumph back to Europe through Asia Minor and Constantinople. He accordingly entered Syria in February, 1799, with 12,000 men, but was brought to a standstill before St. Jean d'Acre. Failing to capture that fortress, supported as it was by the British squadron under Sir Sidney Smith, in spite of the most desperate efforts, he was obliged to return to Egypt. After his return, Napoleon defeated a Turkish army which had landed at Aboukir, but learning the reverses that had been suffered by the French arms in Europe, he resolved to leave Egypt and return to France. He embarked secretly on August 22d, leaving a letter placing Kleber in command of the Army of Egypt, and landed in France six weeks later.