at the start of world war 2 which countries were colonial territories of east Asia and southeast Asia

Philippines, Malaysia, Myanmar, Vietnam, Cambodia, Laos, and the Kingdom of Siam.

Explanation:

The colonization of that part of the world began in the late sixteenth century. European countries such as France, Britain, and the Netherlands influenced the colonization of that part of Asia. The United States recorded political influence during the twentieth century. All the mentioned countries were under the colonial rule of certain countries at the beginning of the Second World War. Many gained independence only in the second half of the twentieth century.

a

explanation:

it was douglas macarthur..