Sault Ste. Marie, Ontario the locks. An anti-aircraft training facility was established north of Sault Ste. Marie on the shores of Lake Superior. Barrage balloons were installed, and early warning radar bases were established at five locations in northern Ontario (Kapuskasing, Cochrane, Hearst, Armstrong (Thunder Bay District), and Nakina) to watch for incoming aircraft. Military personnel were established to guard sensitive parts of the transportation infrastructure. A little over one year later, in January 1943, most of these facilities and defences were deemed excessive and removed, save a reduced military base at Sault Ste. Marie. The first "Algerine"-class minesweeper in the Royal Canadian Navy
Sault Ste. Marie, Michigan middle schools, one in the Sault Ste. Marie School System known as Sault Area Middle School. Before the 6th grade annex was added in the late 1980s, the school was referred to as Sault Area Junior High School. The Second Middle School is a part of Joseph K. Lumsden Bahweting School, a Native American-affiliated Public School Academy. St. Mary's Catholic School serves students in grades K–8. There are several elementary schools in Sault Ste. Marie and the surrounding area, including Lincoln Elementary, Washington Elementary, Soo Township Elementary, in the Sault Ste. Marie School System. There is also a Public School