Major General Bengt (T:son) Trygvesson Liljestrand (26 February 1919 – 2 January 2000) was a Swedish Army officer.

[2] During his school days he had been a skilled swimmer, and he developed this into a versatility that the same year resulted in a silver medal in the Swedish Championships in modern pentathlon.

[2] Liljestrand attended the Royal Swedish Army Staff College between 1947 and 1949[2] and he received a Bachelor of Arts degree (fil.kand.)

[3] Liljestrand was Senior Administrative Officer at the Coordination Department at the Ministry of Defense from 1962 to 1963 and was promoted to colonel in the General Staff Corps in 1964.

[3] Liljestrand was Section Chief at the Defence Staff from 1964 to 1966 and received a diploma from the Centre d’Etudes Industrielles in Geneva, Switzerland in 1967.

Under Liljestrand's leadership, it moved east to fill the void left by Israeli forces, which gradually withdrew from the occupied territories of the Sinai Peninsula.