Sri Lanka's Defence Secretary Gotabaya Rajapaksa (in white cap) and Sri Lanka's Indian High Commissioner Ashok Kantha (3rd R) watch the Indo-Lanka joint naval exercise at Trincomalee navy base in Trincomalee, about 275km (171 miles) east of Colombo, September 23, 2011. The five-day joint exercise, which involves over a dozen ships, helicopters and one maritime reconnaissance aircraft, aims to strengthen ties and foster an exchange of knowledge between both navies. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: MILITARY POLITICS)