戦争が突然始まった。

戦争が突然始まった。

War suddenly broke out.

戦争(せんそう)が突然(とつぜん)始(はじ)まった。

Sensō ga totsuzen hajimatta.

戦争 (せんそう)

war

が (が)

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

突然 (とつぜん)

abrupt; sudden; unexpected; all at once

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: 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: トツ、カ、つ.く

Meanings: stab, protruding, thrust, pierce, prick, collision, sudden

Readings: ゼン、ネン、しか、しか.り、しか.し、さ

Meanings: sort of thing, so, if so, in that case, well

Readings: シ、はじ.める、 -はじ.める、はじ.まる

Meanings: commence, begin