A system for performing long distance, real time, remote welding, the system comprising: a robotic welding system, configured to be set up at a remote welding site to perform an actual welding operation, the robotic welding system including: a welding torch, a camera, and a first controller configured to control the robotic welding system and capture video of at least an arc or a beam between a workpiece and the welding torch during the actual welding operation via the camera; a simulated welding system, configured to be set up at a local site, including: a head-mounted display device configured to be worn by a human welder to observe at least the video at the local site, a mock welding tool configured to remotely control the welding torch in response to the human welder holding and moving the mock welding tool at the local site while observing at least the video, and a second controller configured to control the simulated welding system and generate control parameters while tracking movements of the mock welding tool; the system being characterised by the following: an ultra-low-latency communication network configured to provide communication of at least the video and the control parameters between the first controller at the remote welding site and the second controller at the local site, wherein a round-trip communication latency between the first controller and the second controller is between 0.5 milliseconds and 10 milliseconds, and wherein a straight-line distance between the remote welding site and the local site is at least 10 kilometers, wherein the robotic welding system is configured to form an actual weld on the workpiece at the remote welding site, during the actual welding operation, via remote robotic control of the welding torch via the mock welding tool in response to at least the control parameters, and wherein the robotic welding system includes an auto-darkening filter, and wherein the first controller is configured to capture the video of at least the arc or the beam between the workpiece and the welding torch during the actual welding operation via the camera observing through the auto-darkening filter. a welding torch, a camera, and a first controller configured to control the robotic welding system and capture video of at least an arc or a beam between a workpiece and the welding torch during the actual welding operation via the camera; a simulated welding system, configured to be set up at a local site, including: a head-mounted display device configured to be worn by a human welder to observe at least the video at the local site, a mock welding tool configured to remotely control the welding torch in response to the human welder holding and moving the mock welding tool at the local site while observing at least the video, and a second controller configured to control the simulated welding system and generate control parameters while tracking movements of the mock welding tool; a head-mounted display device configured to be worn by a human welder to observe at least the video at the local site, a mock welding tool configured to remotely control the welding torch in response to the human welder holding and moving the mock welding tool at the local site while observing at least the video, and a second controller configured to control the simulated welding system and generate control parameters while tracking movements of the mock welding tool; an ultra-low-latency communication network configured to provide communication of at least the video and the control parameters between the first controller at the remote welding site and the second controller at the local site, wherein a round-trip communication latency between the first controller and the second controller is between 0.5 milliseconds and 10 milliseconds, and wherein a straight-line distance between the remote welding site and the local site is at least 10 kilometers, wherein the robotic welding system is configured to form an actual weld on the workpiece at the remote welding site, during the actual welding operation, via remote robotic control of the welding torch via the mock welding tool in response to at least the control parameters, and wherein the robotic welding system includes an auto-darkening filter, and wherein the first controller is configured to capture the video of at least the arc or the beam between the workpiece and the welding torch during the actual welding operation via the camera observing through the auto-darkening filter.