Okay kiddo, let me explain! Back in the day during the Vietnam War, there were two groups of people fighting against each other - the North Vietnamese Army (NVA) and the South Vietnamese Army (SVA). The North Vietnamese Army had a special unit called the "People's Army of Vietnam" or "PAVN" for short, which was responsible for coordinating their logistics and equipment.
Now, logistics basically means planning and organizing how to get supplies like food, weapons, and medicine to where they were needed. The PAVN had to make sure everything was good to go for their soldiers fighting in the war. They made sure there was enough food and water for everyone, they coordinated the transportation of supplies to different places, and they made sure everyone had the gear they needed to fight.
Equipment is all the things that are necessary for a soldier to do their job. This includes things like guns, grenades, uniforms, and even vehicles like trucks and tanks. The PAVN would make sure all their soldiers had the proper equipment they needed to go out and fight the SVA.
On the other side, the SVA had the National Liberation Front (NLF), which worked in a similar way as the PAVN to coordinate logistics and equipment for their side. They also made sure their soldiers were fed, had the right gear, and had transportation to get where they needed to go.
So, both the PAVN and NLF were groups in charge of making sure their side's soldiers had everything they needed to fight the war. Does that help you understand a bit better, little buddy?