Dennis Foley was a writer and producer on such iconic TV shows as Cagney & Lacey, China Beach, and MacGyver - he wrote the stunts for the latter show, always being careful to leave out an essential ingredient so the watchers at home couldn't build their own thermonuclear devices.
During a Hollywood writers strike, he turned to writing Vietnam novels, specifically about Long Range Recon Patrols based on his own experiences in SE Asia. His Vietnam novels have a gritty reality, and are infused with the ethical struggles of that period.
You'll feel like you're there in the jungle with these dangerous men.