There are a couple of reasons for why the empire didn't last. One of those reasons is that the empire was too great (big). Because the empire was too huge, it was divided into different parts after Alexander's death. He also didn't have an heir to the throne, so when he died, officials fought for power and to become king, which also contributed to the fall of the empire as well.
<span>
the christians tried to take back the hold land but instead it became the most embarrassing move made by the roman catholic church. in other words,the crusades were a complete failure
</span>
The United States sent peacekeeping forces to Bosnia-Herzegovina in 1996.
Bosnian Serbs had been carrying out a campaign of ethnic cleansing against Bosniaks and Croatians. The United States also was involved in the Dayton Accords in November 1995, which were aimed at resolving the conflict in the Balkan region.
Yeah it's B. The Pentagon papers were leaked and showed that the US was involved with the Vietnam war far longer than the public thought.