sentences:  During the Italian invasion of Ethiopia in 1935, Vaccari wrote defenses of Italy's actions.Together with his wife, Vaccari prepared many books to help foreign learners of Japanese, and his most popular works included the "New Up-to-date English-Japanese Conversation Dictionary" and "Vaccari's Concise English-Japanese Japanese-English Dictionary" (all published by Maruzen).In 1972, the couple began work on "Vaccari's Standard Japanese-English Dictionary" (ヴァカーリズタンダード和英辞典 "Vakāri Zutandādo Wa-Ei Jiten"), considered to be the culmination of their lifetime's study.