BANGKOK, Feb. 16 (Xinhua) -- Thai, South Korean and U.S. marines conduct amphibious assault exercise during Cobra Gold 19 at Hat Yao Beach in Thailand's southeastern province of Chon Buri on Saturday, organizers said.

According to a press release from the Thai side, the amphibious assault exercise included a process of transferring military personnel to shore, which aims to get them more prepared and enhance their capacities.

Some 1,183 service members from the three countries attended the exercise on Saturday.

Exercise Cobra Gold, the largest theater security cooperation exercise in Southeast Asia, is in its 38th iteration. It is taking place this year from Feb. 12 to Feb. 23 at various locations throughout Thailand.

According to a press release from the U.S. embassy in Thailand, this year's exercise will consist of three primary events: a staff exercise, humanitarian civic assistance projects, and a field training exercise that includes a variety of training events to enhance interoperability and strengthen regional relationships.

There are up to 29 nations either directly participating in or observing Cobra Gold 2019, with approximately 4,500 U.S. personnel directly participating both ashore and afloat.