TASK DEFINITION: In this task, you are given a sentence in the Japanese language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
PROBLEM: 残念ながらイギリス軍の一員が今日午後、現在も継続中の南アフガニスタンヘルマンド州での対反乱軍活動中に死亡したことが確認されたと、国防省の声明は言った。

SOLUTION: It is with regret that we can confirm that a member of the UK Armed Forces has been killed in action this afternoon during ongoing operations against insurgent positions in Helmand Province, Southern Afghanistan, said an MOD statement.

PROBLEM: １人は心臓発作が起こり、もう１人はパニックになり窓から飛び降りたあとで死亡したと考えられています。

SOLUTION:  one was thought to have suffered a heart attack and the other died after jumping from a window in panic.

PROBLEM: ヒラリー・クリントンは自身の支援者達にバラク・オバマを援助するよう要請し、自身も大統領選共和党代表のアリゾナ州上院議員のジョン・マケイン氏打倒のため尽力するとアピールした。

SOLUTION:
Hillary Clinton appealed to her supporters to help Barack Obama and pledged that she will personally help in defeating the presidential plans of Republican presumptive Presidential candidate, Arizona senator John McCain.