34. 报告指出，2019/20 年度拟议增加的主要原因是，为应对 2019 年 1 月联索支助办大院遭到的迫击炮袭击，为五个区购置了一个反火箭迫击炮系统(800万美元)(同上，第 173 段)。行预咨委会询问后获悉，由于遭到袭击后摩加迪沙大院的安全风险评估从中等风险改为高风险，已通过评估和专题专家审查确定了缓解和加强安全的基线措施。因此，为应对迫击炮袭击，请求在 2019/20 年度追加所需经费 1 310 万美元，其中包括反火箭迫击炮系统所需经费(共计 750 万美元，每个系统 150 万美元，预算编列在通信和信息技术项下)和相关运费(50 万美元，预算编列在其他用品、服务和设备项下)，以及施工费用 510 万美元，预算编列在设施和基础设施项下(见下文第 36 和 37 段)。
34. It is indicated that the proposed increase for 2019/20 is primarily owing to the acquisition of counter-rocket, artillery and mortar systems for five sectors in response to the mortar attack on the UNSOS compound in January 2019 ($8 million) (ibid., para. 173). Upon enquiry, the Advisory Committee was informed that as a result of the change in the security risk assessment of the compound in Mogadishu, from medium to high risk following the attack, baseline security mitigation and enhancement measures had been identified through assessments and subject matter expert reviews. Consequently, additional requirements in response to the mortar attack in a total amount of $13.1 million are requested for the 2019/20 period, consisting of requirements for the counter-rocket, artillery and mortar systems (a total of $7.5 million at a cost of $1.5 million each, budgeted under communications and information technology) and related freight costs ($0.5 million, budgeted under other supplies, services and equipment), as well as construction costs of$5.1 million, budgeted under facilities and infrastructure (see paras. 36 and 37 below).