However the UN peacekeepers will be carrying out aerial reconnaissance missions and hope that to clear a picture by the end of the weekend.

然而联合国维和人员将进行空中侦察任务，希望能在本周末前使得事情明朗下来。

In 1907, Julius Neubronner, a German pharmacist who used the birds to deliver medicine, invented a miniature pigeon camera, and this camera was used briefly in the war for aerial reconnaissance.

1907年，利用鸟类送药的德国药剂师朱利叶斯·诺伊布伦纳发明了一种微型鸽子照相机，这种照相机在战争中曾短暂用于空中侦察。