Battle of Suoi Chau Pha
The Battle of Suoi Chau Pha (6 August 1967) was fought during the Vietnam War between Australian troops and the Viet Cong. The battle took place during Operation Ballarat, an Australian search and destroy operation in the eastern Hat Dich area, north-west of Nui Dat in Phuoc Tuy province. Following a covert insertion the day before which had caught a number of Viet Cong sentries by surprise, A Company, 7th Battalion, Royal Australian Regiment (7 RAR) had patrolled forward unaware of the presence of a large Viet Cong main force unit nearby. Clashing with a reinforced company from the Viet Cong 3rd Battalion, 274th Regiment, a classic encounter battle ensued between two forces of roughly equal size. Fought at close quarters in dense jungle amid a heavy monsoon rain, both sides suffered heavy casualties as neither was able to gain an advantage. Finally, after a battle lasting several hours, the Australian artillery proved decisive and the Viet Cong were forced to withdraw, dragging many of their dead from the battlefield after having suffered crippling losses.
Battle of Cao Bang (1979)
The Battle of Cao Bằng was fought between the Chinese People's Liberation Army (PLA) and the Vietnam People's Army (VPA) over the city of Cao Bằng and its vicinity, from the beginning of the Sino-Vietnamese War on 17 February, to 6 March 1979. After the capture of Cao Bằng on 25 February, Chinese forces still had to struggle for days to gain control over other areas in the province against badly outnumbered Vietnamese defenders. Contrary to the Chinese intention to battle against and defeat some major regular units of the VPA, the PLA found themselves encountering mostly small units of Vietnamese border guards and militia, which had clearly outperformed their enemy.