REUTERS/Chor Sokunthea : Soviet-made T-55 tank is unloaded in Cambodia

A Soviet-made T-55 tank is unloaded at Preah Sihanouk port, about 230 km (142.9 miles) west of Phnom Penh September 20, 2010. Cambodia has bought 44 APCs and 50 new T-55 tanks as part of the country's effort to "strengthen sovereignty" following the tension with Thailand over the World Heritage listed Preah Vihear temple since 2008, the pro-government newspaper Rasmei Kampuchea Daily reported. REUTERS/Chor Sokunthea

A Soviet-made T-55 tank is unloaded at Preah Sihanouk port, about 230 km (142.9 miles) west of Phnom Penh September 20, 2010. Cambodia has bought 44 APCsand 50 new T-55 tanks as part of the country's effort to "strengthen sovereignty" following the tension with Thailand over the World Heritage listed Preah Vihear temple since 2008, the pro-government newspaper Rasmei Kampuchea Daily reported. REUTERS/Chor Sokunthea

A Soviet-made T-55 tank is seen on a ship prior being unloaded at Preah Sihanouk port, about 230 km (142.9 miles) west of Phnom Penh September 20, 2010.Cambodia has bought 44 APCs and 50 new T-55 tanks as part of the country's effort to "strengthen sovereignty" following the tension with Thailand over the World Heritage listed Preah Vihear temple since 2008, the pro-government newspaper Rasmei Kampuchea Daily reported. REUTERS/Chor Sokunthea

Russian-made BTR-60 armoured personnel carriers (APC) are seen on a ship prior to being unloaded at Preah Sihanouk port, about 230 km (142.9 miles) westof Phnom Penh September 20, 2010. Cambodia has bought 44 APCs and 50 new T55 tanks as part of the country's effort to "strengthen sovereignty" following the tension with Thailand over the World Heritage listed Preah Vihear temple since 2008, the pro-government newspaper Rasmei Kampuchea Daily reported. REUTERS/Chor Sokunthea

A Soviet-made T-55 tank is unloaded at Preah Sihanouk port, about 230 km (142.9 miles) west of Phnom Penh September 20, 2010. Cambodia has bought 44 APCs and 50 new T-55 tanks as part of the country's effort to "strengthen sovereignty" following the tension with Thailand over the World Heritage listed Preah Vihear temple since 2008, the pro-government newspaper Rasmei Kampuchea Daily reported. REUTERS/Chor Sokunthea A Soviet-made T-55 tank is unloaded at Preah Sihanouk port, about 230 km (142.9 miles) west of Phnom Penh September 20, 2010. Cambodia has bought 44 APCsand 50 new T-55 tanks as part of the country's effort to "strengthen sovereignty" following the tension with Thailand over the World Heritage listed Preah Vihear temple since 2008, the pro-government newspaper Rasmei Kampuchea Daily reported. REUTERS/Chor Sokunthea A Soviet-made T-55 tank is seen on a ship prior being unloaded at Preah Sihanouk port, about 230 km (142.9 miles) west of Phnom Penh September 20, 2010.Cambodia has bought 44 APCs and 50 new T-55 tanks as part of the country's effort to "strengthen sovereignty" following the tension with Thailand over the World Heritage listed Preah Vihear temple since 2008, the pro-government newspaper Rasmei Kampuchea Daily reported. REUTERS/Chor Sokunthea Russian-made BTR-60 armoured personnel carriers (APC) are seen on a ship prior to being unloaded at Preah Sihanouk port, about 230 km (142.9 miles) westof Phnom Penh September 20, 2010. Cambodia has bought 44 APCs and 50 new T55 tanks as part of the country's effort to "strengthen sovereignty" following the tension with Thailand over the World Heritage listed Preah Vihear temple since 2008, the pro-government newspaper Rasmei Kampuchea Daily reported. REUTERS/Chor Sokunthea