NEW DELHI, May 20 : India and South Korea on Wednesday signed key agreements to shore up cooperation in defence cyberspace and military training, reaffirming their commitment to stronger bilateral defence ties and a rules-based Indo-Pacific, a region that has witnessed increasing Chinese assertiveness.The pacts were firmed up following Defence Minister Rajnath Singh’s wide-ranging talks in Seoul with his South Korean counterpart Ahn Gyu-back.The defence minister landed in the South Korean capital city last evening on a three-day visit.Singh and Gyu-back reviewed the entire spectrum of defence cooperation and discussed ways to further expand collaboration in areas such as joint…