What caused great britain to expedite the alliance with france and russia?

germany crossed neutral belgium.
the assassination of archduke francis ferdinand.
russia's attempt to control the balkan area.
the attempt to colonize north africa.

The other person is wrong y'all I just did this and the answer is Germany crossed neutral Belgiumwhich should be answer choice A

1.) irish.

2.) settlers could obtain cheap land nearby

3.) steam engine

explanation:

the romans were initially interested in expansion via sicily (which at that time was a cultural melting pot), part of which lay under carthaginian control. at the start of the first punic war (264-241 bc), carthage was the dominant power of the western mediterranean, with an extensive maritime empire