Im not sure if i should go, what do you guys think?

So my brother wants me to go camping with him, when he comes back from deployment in January. Our friends will be coming too. He can visit family for 2 weeks but then has to go back to virginia. Then he goes to japan for 2 years, but the problem is my husband.

For some reason he does not trust me, im 10000% loyal and i never ever cheated on him before. Its actually him the one that use to cheat on me. Im pretty sure if i tell him i want to go camping with my brother, he will just tell me No and try to keep me home with him.

I mean, do you think its ok for me to go camping with my brother and our friends? We will be 3 hours away. My husband wont be coming because he works and the camping trip will only be for 2 nights. My husband is very insecure and always has to look through my phone if im doing something im not suppose to be doing. I know that when i tell him, he is going to flip his shit. What would be a good way to say that i want to go camping with my brother without him thinking i will do something.