This test was a piece of cake.
”How was the JLPT5?" "Thanks to WaniKani, it was easy peasy."
The side who has better technology in a war will usually have an easy victory.
A win that was an ease. That is an easy victory or an easy win. Don't hope for a lot of these, though. Hope for tough wins instead, they actually make you better.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.