Bar Lev Line
The Bar Lev Line evolved from a group of rudimentary fortifications placed along the canal line. In response to Egyptian artillery bombardments during the War of Attrition, Israel developed the fortifications into an elaborate defense system spanning along Suez Canal, with the exception of the Great Bitter Lake (where a canal crossing was unlikely due to the width of the lake). The Bar Lev Line was designed to defend against any major Egyptian assault across the canal, and was expected to function as a "graveyard for Egyptian troops".