Press your lips together to stop the air, then release. No vocal cord vibration.

Americans pronounce peacekeeping as PEES-kee-puhng (/ˈpisˌkipəŋ/). Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "The peacekeeping forces were deployed to stabilize the region".
Record yourself saying "peacekeeping" and play it back. The mic stays on your device — nothing's uploaded.
3 syllables, 8 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
Press your lips together to stop the air, then release. No vocal cord vibration.

Pull the corners of your lips back slightly. Arch the middle-front of your tongue high toward the roof of the mouth.

Place your tongue tip near the roof of your mouth behind your top teeth. Push air through the narrow gap. No voicing.

The textbook way isn't wrong — it's just not how anyone actually says it.
Stress falls on the first syllable, not the others. Stretch PEES — keep everything else short and quick.
Don't pronounce the second syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.