Members of the British Army Household Cavalry Mounted Regiment exercise their horses during a media event at the Hyde Park Barracks in London April 15.

4月15日，伦敦海德公园军营，一次媒体活动上，英国皇家御林奇兵们在驯马。

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A member of the State Trumpeters of the Household Cavalry is seen during a media event at the Household Cavalry's Mounted Regiment in Hyde Park barracks in London on April, 15.

4月25日，伦敦海德公园军营，皇家装备骑兵团的媒体活动上，一个皇家骑兵团的号手。

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The prince, Second Lieutenant with the Blues and Royals Household Cavalry regiment in the Army, will undertake secondment with the Royal Navy and RAF next year.

BBC: NEWS | UK | Scotland | Glasgow, Lanarkshire and West | Prince joins Marines at Faslane

Lance Corporal of Horse Matty Hull, 25, of The Blues and Royals, Household Cavalry Regiment, which is based in Berkshire, was killed during a suspected "friendly fire" incident on Friday.

BBC: 'Friendly fire' widow's grief