How to pronounce 核戰 in Cantonese (4 out of 6):

升級至全面嘅核戰
It's going to be a full-scale nuclear war.

Cantonese Sentence Breakdown

升級 sing1 kap1
upgrade
zi3
to arrive
most
to
until
to reach
extremely
very
only then
全面 cyun4 min6
comprehensive
koi3
indignant
generous
to sigh (with emotion)
核戰 hat6 zin3
nuclear war