This poster is encouraging citizens to do what: a
Enlist in the Navy
b
Conserve Food
c
Buy War Bonds
d
Enlist in the Army

you can't, there's no way sorry

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