What effect did the Punic Wars have on Rome's military development?

Rome's navy no longer had enough ships to control the Mediterranean Sea. The Roman army grew in size and became dominant in the Mediterranean region. Rome limited its soldiers to six months of service each year.

Com a vitória nas Guerras Púnicas e sobre todos os outros povos, Roma conseguiu dominar todo o Mar Mediterrâneo, passando a chamá-lo de “Mare Nostrum”, que significava “nosso mar”.

Explicação: Boa sorte, espero ter ajudado:

confederacy: supported slavery, believed states should be able to nullify federal laws, supported low tariffs

union: everything else

d is the right answer