The Philippine Coast Guard has accused a Chinese Coast Guard ship of using a “military-grade laser” to disrupt a resupply mission to its troops in the South China Sea. This incident has raised tensions between the two countries, which have long been in a territorial dispute over the South China Sea, and has led to the Philippines strengthening its military presence in the area and seeking support from its allies. China has responded by accusing the Philippines of trespassing and violating its sovereignty.