How did imperialism and militarism lead europe to the brink of war in 1914

for imperialism basically countries were expanding and rolling over other countries
 and for militarism countries thought they could avoid war by building up there army an was used as an intimidation factor more then anything else, also the alliance system played a big part in all that by if one country got attacked the allies would have to back them up which started WWI

It caused the soviet union, Germany and Italy to compete with France and Great Britain for colonies but there was not enough lands to colonize so this lead to war Hope this Helped!!