Battle of the Rajang River (21st Century Crisis)

The Battle of the Rajang River (Malay: Pertempuran Sungai Rajang, Indonesian: Pertempuran Sungai Rajang) also known as the Indonesian invasion of Malaysia (Malay: Pencerobohan Indonesia daripada Malaysia) was one of the major battles fought between Malaysia, and a coalition of Indonesian forces and Sarawakese nationalists.

The battle started out between Malaysian forces and Sarawakese rebels. The poorly-armed Sarawakese rebels were not succesful against the might of the Malaysian army. Soon, after Indonesia declared war on Malaysia, they expressed their support for Sarawakese militants. After the Indonesians entered Sarawak, they were met with welcome by the Sarawakese independance supporters. The Indonesians also helped arm the militants.

The Indonesians overran much of Malaysia's southern forces, capturing soldiers along the way.

It was one of the biggest victories achieved by the Indonesian forces during the war, they pushed the Malaysians up north and east of the Rajang River (the portion of Sarawak that remained part of Malaysia). The Battle of the Rajang River is considered by many to be what granted Sarawak its independance.