South Korea signed a defence cooperation pact with Poland on Tuesday, laying the groundwork for exporting homegrown trainer jets and other military hardware to the European nation seeking to modernize its armed forces. The agreement was signed after South Korean President Park Geun-hye and Polish President Bronislaw Komorowski held summit talks in Seoul and agreed to upgrade relations between the two countries to a \"strategic partnership,\" reported the S.Korean Yonhap news agency today. \"We, the two leaders, found it encouraging that cooperation between the two countries is expanding to the defense area and we welcomed the signing of the defense cooperation pact,\" Park said during a joint news conference with Komorowski after the summit talks.