The fighting between Thailand and Cambodia exposes the depth of global arms proliferation in South-East Asia, proving more sophisticated and deadly than experts expected.

Armed clashes on the remote, disputed border between Cambodia and Thailand killed at least 12 people on Thursday, in a dramatic escalation of tensions that threatens to erupt into a broader conflict.

An F-16 fighter jet from Thailand bombed Cambodian targets amid rising tensions over a border dispute, resulting in at least two civilian deaths. Clashes erupted after Thailand accused Cambodia of planting landmines,