border defence

基本解释

The two sides have also conducted border defence cooperation, which plays a positive role in maintaining peace and tranquillity in the border areas between China and India.
双方还开展边防合作，为维护中印边境地区和平与安宁发挥了积极作用。
For its part, Brazil has promoted the South American Union (UNASUR), which aims to develop cross-border infrastructure and defence co-operation.
就其本身而言，巴西创立了南美洲国家联盟（UNASUR），它旨在发展跨国基础设施和防务合作。

Yet another source of Mr Blair's self-confidence is a feeling that Britain could play a pivotal role in Europe's complex structure of cross-border defence relationships.
ECONOMIST: Blair’s defence offensive The
Although Myanmar has negotiated ceasefires with some of the ethnic insurgents along the border, defence spending keeps climbing, partly because the government fears an uprising, like the one in 1988 that followed demonetisation.
ECONOMIST: Myanmar
For its part, Brazil has promoted the South American Union (UNASUR), which aims to develop cross-border infrastructure and defence co-operation.
ECONOMIST: Yet another new regional club