It upset the balance of free and slave states in the US.
The current countries that are in the fertile crescent consist of Iraq<span>, </span>Kuwait<span>, </span>Syria<span>, </span>Lebanon<span>, </span>Jordan<span>, </span>Israel<span>, Palestine, </span>Cyprus<span>, and </span>Egypt<span>, beside the southeastern fringe of </span>Turkey<span> and the western fringes of </span>Iran<span>.</span>
One reason why United states fought in ww1 was because the Germans attacked a U.S Navy boat,Another reason why is because the primary events that led to the United States declaration of waragainst Germany were the Zimmerman Telegram and Germany's announced intention to resume unrestricted submarine warfare. American sentiment had leaned toward the Allies and against the Central powers for some time.
i tried my best
D) the united states suffering no war damage and having a strong economy