YOU SAID:

Bear long, engaged in Japan alone, the ideal situation is that you can now test a great civil war.

INTO JAPANESE

長い間負担、日本だけに従事し、理想的な状態は、今偉大な内戦をテストできることです。

BACK INTO ENGLISH

Bear for a long time, and engage only in Japan, an ideal situation is that you can now test the great civil war.