American ships became targets of attack by 1917 because

American ships became targets of attack by 1917 because Americans continued to trade with the warring nations.

At that time, the american vowed that we adopt a non-interventionist policy during the war time. But when we continue to trade with warring nations, other nations viewed it as we supplying materials and supplies to one of the nations that involved in the war. This is why american ships became targets of attack.

affirmative action refers to the policies that take gender, race, or ethnicity into account in order to promote equal opportunity.

employers subject to title vii are prohibited from taking race or sex into account in any employment decisions. aa is a penalty for having any job group substantially statistically "underutilized" in any race or either sex. the employer must take steps to eliminate the underutilization, then stop, ending its aa efforts