Well the l<span>ongbow, made the classic attack of sword, lance or joust useless, for the most part.
When someone could kill a soldier from a hundred yards, there was no need to get close enough for horse or foot soldier to fight
.
Gunpowder brought in the canon, and this was a weapon that was effective even farther than the long bow.
It could kill multiple people at long range, plus, it made the stone castle obsolete, because canon balls could blast them apart.</span>
The sioux indian attacks on stagecoach lines.
<span>The causes of the Sand Creek massacre
were rooted in the long conflict for control of the Great Plains of
eastern Colorado. The Fort Laramie Treaty of 1851 guaranteed ownership
of the area north of the Arkansas River to the Nebraska border to the
Cheyenne and Arapahoe -that part was sighted off history.com- </span>
Oil. it is a finite resource
Answer: It reinforced the United Nations' peacekeeping efforts in Somalia.
