Answer:
After two centuries (off and on) as a province of the Persian empire, Egypt was conquered by Alexander the Great. After his death in 323 BCE, Egypt passed into the hands of his general, Ptolemy, and his descendants. Under them, Egypt has become the wealthiest and most highly organized of the “Hellenistic” kingdoms.
Neither one of the sides were fruitful in getting through the resistance of the other and bringing about a stalemate. Trench fighting developed due the disappointment of the Schliffen Plan. It was another arrangement of fighting which was an immediate reason for the stalemate, and this is the reason. It was an arrangement of resistance not offense.
Because Dr. Borlaug’s work significantly increased agricultural yields in Mexico and India.