Recon Marines in I Corps, 1969-70

In 1969–1970–at the start of “Vietnamization”– a small, exposed rise south of Da Nang became one of the most contested observation posts in I Corps. Known simply as Hill 119, it overlooked the Thu Bon River Basin and Go Noi Island — terrain Marines called “Indian Country.” From this barren patch of ground, rotating platoons of Recon Marines watched, reported, called artillery, and launched patrols into enemy-held territory.

Our guest, Col. Michael O. “Deli” Fallon, USMC (Ret.), served there as a young officer and later set out to reconstruct the full story. In writing Hill 119, Defending a Reconnaissance Marine’ OP, Vietnam, 1969-1970, Fallon interviewed more than one hundred Marines and artillerymen who rotated through the position and analyzed hundreds of debriefing reports and command chronologies to piece together what daily life — and nightly danger — truly looked like.

Hill 119 was an observation post and a patrol base, a radio relay site monitoring Recon frequencies, and even a testing ground for new battlefield technology, including early laser range-finding systems that sharpened artillery accuracy. Yet as President Nixon’s policy of Vietnamization accelerated, fire support diminished and missions continued with fewer resources. Fallon writes candidly about what that shift meant to Marines holding an exposed hill while political decisions were made far away.

We’ll also explore the harder questions: operating among civilians whose loyalties were uncertain, the strain of constant rotation as platoons “flipped” in and out, the reliance on helicopter crews who flew into enemy fire to extract teams — and the court-martial that followed the shooting of a Vietnamese woman outside the perimeter, a case that unfolded in the shadow of My Lai.

Hill 119 could feel like the moon — one Marine joked on the night of the Apollo landing, “You’re already on the Moon.” But it was no abstraction. It was close combat, long watches, and young men navigating the line between aggression and restraint.

Join us for a conversation about small-unit war, memory and documentation, leadership under scrutiny, and what Vietnamization looked like on the ground.