On September 1, 1888, the 421st Division arrived in Luanda first, but faced with the well-prepared defenders of Luanda, the 421st Division had difficulty making progress.
However, on September 3, the 421st Division, having shaken off the local indigenous obstacles, also arrived in Luanda. Both sides celebrated their victory in Luanda, which basically signified the destabilization of Portuguese rule in Angola.
After assessing the current situation, the 331st and 421st Divisions expressed the desire to collaborate. The 331st Division was responsible for the main assault, while the 421st Division was tasked with intercepting the Portuguese army attempting to reinforce Luanda, allowing both sides to make full use of their advantages to achieve victory over Luanda.
The 331st Division had a significant advantage over the 421st Division in terms of heavy weaponry, which was one of the main reasons why the 331st Division arrived in Luanda later than the 421st.
