Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: You want to defend yourself? You should probably put out that fuse (ふせ) attached to that giant bomb first then.
We need to discuss how to prevent accidents.
While Viet and the others were defending themselves against the enemy, Kristen had Prince Koichi escape to Japan.
This down jacket will really protect you from the cold.