
The United States considered in the 1960s a proposal to use 520 nuclear bombs to create a rival channel to the Suez Canal, which would pass through Israel.
This is revealed through an already declassified demo.
The plan was never realized, but having an alternative waterway to the Suez Canal could be useful in March 2021, when a cargo ship stuck on the narrow path blocked one of the world's most vital transport routes for more than a week.
According to the 1963 memorandum, which was declassified in 1996, the plan would be carried out through the controlled explosion of 520 nuclear bombs to open the waterway. The memo called for "the use of nuclear explosives for digging the Dead Sea Canal through the Negev Desert" in Israel.
Historian Alex Wellerstein called the plan a "modest proposal for the Suez Canal situation" in Titter on March 24, 2021. The memo was from the U.S. Department of Energy's National Laboratory, Lawrence Livermore. He suggested that an "interesting application of nuclear excavations would be a 160-mile-long sea level channel throughout Israel".
Conventional excavation methods would be "too expensive," the memo said. "It seems that nuclear explosives can be applied for good in this situation."
The memorandum added that "such a channel would be a valuable strategic alternative to the current Suez Channel and would probably contribute greatly to economic development." As part of the pricing model, the memo estimated that four 2-megatons devices would be needed for each mile, which Wellerstein estimates as "520 cores" or 1.04 gigatons of explosives.

A possible route the memorandum proposed that the channel be extended to the Negev Desert in Israel, connecting the Mediterranean with the Gulf of Akkaba, opening the entrance to the Red Sea and the Indian Ocean.
The laboratory noted that there were 130 miles of "virtually unpopulated wilderness and thus are suitable for nuclear excavation methods".
But the memo conceived that a problem, which the authors had not considered, could be "political fysibility, as it is likely that arab countries surrounding Israel would strongly oppose the construction of such a channel".
The memo came as the U.S. Atomic Energy Commission was reviewing access to "peaceful nuclear explosions" to excavate useful infrastructure, Forbes reported in 2018. There were also plans to use this method to dig a channel in Central America, Forbes reported.
But the PNE project remained experimental, as the US discovered that 27 experiments with PNE radiated heavily in the environment. The Atomic Energy Commission was also abolished in 1974.