21. Yang's planned path of invasion was via Bhamo and down the Irrawaddy River to Ava. 22. He made further incursions westwards into the Irrawaddy River region in modern-day Burma before withdrawing. 23. It is a tributary of the Irrawaddy River . 24. On 13 February 1945, the division made a crossing of the Irrawaddy River west of Mandalay. 25. It is situated on the Chindwin River, near the site where it flows into Irrawaddy River . 26. Animals potentially impacted include the threatened Irrawaddy dolphin and the Irrawaddy river shark, an endangered species. 27. This prevented the Japanese from having a usable, local fleet for transport up the Irrawaddy River . 28. It is the drainage divide between the Nujiang ( Salween River ) and the Irrawaddy River . 29. In 1742, the Hanthawaddy forces started raiding annually up the Irrawaddy river as far as Ava. 30. The Irrawaddy river is home to a large diversity of animals, including about 43 fish species.