PLEASEEE HELP ME GUYs why was the North African campaign a “turning point” please give me the right answer because the teacher is blowing me

The second battle of El Alamein, which began on 23 October 1942, was the turning point of the North African campaign - the longest and most important land campaign fought by New Zealanders in the Second World War. Between 1940 and 1943 British and Commonwealth troops, together with contingents from occupied European countries and the United States, fought an ultimately successful campaign to clear North Africa of German and Italian forces.

the answer is

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.