Because the Persians were in greater numbers and it was virtually impossible to defeat them.
Answer:
North: economically weaken the South by blockading its coast
Explanation:
Hey there,
<span>
Your question states: </span>United States military leaders expected Texas to supply 80 percent of the oil<span> needed for the war effort.
Based on my learning from the past, I learned that it was 80% of </span><span>oil. This was a strong expectation from the start before the War. They needed this to supply and help them.</span><span>
Hope this helps.
~Jurgen</span>