Even if they did implant neuralink on every world leader and every soldier, the devices would eventually start glitching, decaying and poisoning their brain. During a solar maximum (current period) the cosmic radiation would accelerate the decaying process by a factor of 3 and probably block out specific electronic and radio frequencies until they are brain dead.
Discussion
So no change then. Ok.
Even RFID implants would eventually start decaying from radiation, many people don't understand but the Sun is very powerful if you strip away the atmosphere.
Any neuralink brain implant will fry when exposed to cosmic radiation or dust.
I can see teams of humans hardwiring to virtual simulations, using special VR helmets or immersive technologies including cryo-stasis chambers on Earth; this method would allow humanity to conquer the galaxy with humanoid androids - these could provide abundant scientific, sensor and sample feedback, while creating trillions of jobs back on Earth in off-world mining, exploration, maintenance, logistics and recycling. The materials to build these androids and helmets are everywhere on Earth (PET and CO²). No trans-humanism required only augmentation, so neuralink is on the right path BUT if Elon even thinks of deploying it in space or Mars, chips or links could be compromised by cosmic radiation, rays or dust.