YOU SAID:

Vietnam cracked the shell hard that time

INTO JAPANESE

あの時、ベトナムは激しく殻を破った

BACK INTO ENGLISH

At that time, Vietnam broke out of its shell violently

INTO JAPANESE

その時、ベトナムはその殻を激しく打ち破った

BACK INTO ENGLISH

At that time, Vietnam violently broke out of its shell

INTO JAPANESE

その時、ベトナムは暴力的にその殻を破った

BACK INTO ENGLISH

That's when Vietnam broke out of its shell violently

INTO JAPANESE

ベトナムがその殻を暴力的に破ったのはその時だった

BACK INTO ENGLISH

That was when Vietnam violently broke out of its shell

INTO JAPANESE

それはベトナムがその殻を暴力的に破ったときだった

BACK INTO ENGLISH

That was when Vietnam violently broke out of its shell