Answer: This is a very broad question, because many countries have very different governments.
The correct answer is A, the First Anglo Powhatan War
The arrival of English settler Lord De La Warr in Jamestown negatively affected the relationship between English settlers and the Native Americans. The first Anglo-Powhatan war was a series of clashes launched by the Virginia company under the leadership of Warr, against an alliance of Algonquian- speaking Virginia Indians. English settlers used Irish tactics in the battle. However, the native Americans and the colonists reached a peace agreement in 1614.
Trench warfare ultimately hindered the progress of the war because it drew it to his stand still because neither side could advance.
Versailles Treaty is the one I think.