During April, the European Union also successfully exercised its ability to deploy a strategic, over-the-horizon reserve force and tactical in-theatre reserve forces into Bosnia and Herzegovina.
4月期间，欧洲联盟还成功地发挥其能力，向波斯尼亚和黑塞哥维那部署了超视距储备部队和行动区内战术储备部队。