How did alliances contribute to the start of World War I?

Secret alliances were formed prior to ww1 so once the conflict started the many alliances kicked in and led to many nations protecting one another

Well, the correct answer is to reduce federal spendingthis is because he had done a reconstruction of the system to improve it for the future of the united states, but it didn't reduce federal spending pretty much at all. the previous governments made federal spending a huge problem causing the promise to fail because it was pretty much an impossible  task.i hope this mark me as brainiest