After its U-boats sank the Lusitania in 1915, what did Germany promise to do? O stop fighting on the western front
sign the Treaty of Brest-Litovsk
limit submarine warfare
sink more passenger vessels

Germany limited submarine warfare. The last choice.

Explanation:

America started to protest when Germany sunk the Lusitania. Germany apologized, and put restrictions on submarine warfare. They later sunk another ship, an Italian liner, without warning, killing over 270 people including Americans.

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.