Battle of Rạch Gầm-Xoài Mút
The Battle of Rạch Gầm-Xoài Mút ( , ) was fought between the Vietnamese Tây Sơn forces and an army of Siam in present-day Tiền Giang Province on January 20 , 1785 . 
<triplet> Battle of Rạch Gầm-Xoài Mút <subj> January 20, 1785 <obj> point in time