条約が無視されたときに、戦争が始まった。

War broke out when the treaty was ignored.

条約(じょうやく)が無視(むし)されたときに、戦争(せんそう)が始(はじ)まった。

Jōyaku ga mushisareta tokini, sensō ga hajimatta.

条約 (じょうやく)

treaty; pact

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

無視 (むし)

disregarding; ignoring

時に (ときに)

by the way; incidentally; sometimes; occasionally

戦争 (せんそう)

war

始まる (はじまる)

to begin; to start; to commence; to happen (again); to begin (anew); to date (from); to originate (in)

Readings: ジョウ、チョウ、デキ、えだ、すじ

Meanings: article, clause, item, stripe, streak

Readings: ヤク、つづ.まる、つづ.める、つづま.やか

Meanings: promise, approximately, shrink

Readings: ム、ブ、な.い

Meanings: nothingness, none, ain't, nothing, nil, not

Readings: シ、み.る

Meanings: inspection, regard as, see, look at

Readings: セン、いくさ、たたか.う、おのの.く、そよ.ぐ、わなな.く

Meanings: war, battle, match

Readings: ソウ、あらそ.う、いか.でか

Meanings: contend, dispute, argue

Readings: シ、はじ.める、 -はじ.める、はじ.まる

Meanings: commence, begin