BANGKOK — Tensions between Cambodia and Thailand have erupted into the fiercest armed conflict in over a decade, with Thailand deploying F-16 fighter jets as battles escalate along the disputed border.

A comparison of military strength highlights a vast imbalance: Cambodia, with a $1.3 billion defense budget and 124,300 active personnel, lacks fighter jets and has limited air and naval capabilities. Its air force comprises only 10 aircraft and 16 helicopters, while its navy operates with 13 patrol vessels and a single amphibious ship.

In contrast, Thailand, a U.S. major non-NATO ally, commands a $5.73 billion defense budget and over 360,000 active troops. Its army boasts 400 tanks, over 1,200 armored vehicles, and 2,600 artillery units. The Royal Thai Air Force, among the region’s most advanced, includes 112 fighter jets like F-16s and Swedish Gripens, supported by a fleet of helicopters.

Thailand’s navy is similarly dominant, with nearly 70,000 personnel, a full aircraft carrier, frigates, and dozens of patrol ships. Its marine corps alone includes 23,000 troops and its naval air wing operates helicopters and UAVs.

The stark military disparity could heavily influence the outcome of any prolonged conflict between the two Southeast Asian neighbors.