Diplomacy
noun
You want to mix opinions from outside your country into the way you handle things. That's called diplomacy. If you mix your country with the ones outside of your own, you'll all profit!
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
日本の外交についての本はたくさんある。
There are many books about Japanese diplomacy.
外交力が足りないんですよ。
Diplomatic skills are not enough.
アメリカとの外交をリードする人はだれですか？
Who leads diplomacy with the United States?