Okay kiddo, so imagine you and your friends want to play a game where you have to cross a river, but there's no way to do it because the water is too deep or too wide. That's where a bridge comes in - it's like a big, sturdy platform that people and vehicles can use to cross over the water.
Now, a logistic support bridge is a special type of bridge that's designed to be assembled and disassembled quickly and easily, so it can be moved from one place to another as needed. It's kind of like a big puzzle that can be put together and taken apart as many times as you want.
These bridges are really useful for things like army operations, disaster relief, and construction sites, because they can be set up quickly in areas where there might not be other ways to get across, like in warzones or after a hurricane or earthquake. They're also useful for crossing over things like trenches, gullies, or other obstacles that might be in the way.
Basically, a logistic support bridge is a portable solution for getting from one side of something to the other side - whether it's a river, a gap, or just a tricky spot.