Original sentence: USA has been the enemy of Pakistan from the start.USA has been trying to destroy all of Pakistan's Nuclear capabilities
Edited sentence: From the end of 2001 the United States has provided material assistance to aid Pakistan in guarding its own nuclear weapons.Specifically the USA has provided helicopters, night-vision goggles and nuclear detection equipment.The cost of the program has been almost $100 million.This included the safeguarding of Pakistan's nuclear material, its warheads as well as its laboratories