to strengthen the defences―reinforce the defences 防備を巌にする - 斎藤和英大辞典
Tighten the defences! They're coming!
守りを固めろ!来るぞ! - Tanaka Corpus
to strengthen the defences 国の固めを厳にする - 斎藤和英大辞典
to strengthen the defences of the country
国の守りを固める - 斎藤和英大辞典
Tighten the defences! They're coming! 守りを固めろ!来るぞ! - Tatoeba例文
the state of defences being impenetrable
守りが堅く隙間がないこと - EDR日英対訳辞書
They lowered their defences and spoke freely to each other.
彼らは心の垣根を取りはずして率直に話し合った. - 研究社 新和英中辞典
He studied sciences of engineering to break our defences. 我々の都市の防御を破るため、 彼は建築学を学んだそうです - 映画・海外ドラマ英語字幕翻訳辞書
Two had bit the dust, one had fled, four had made good their footing inside our defences,
2人が倒れ、一人が逃げ、4人が無事に柵の中に足を踏み入れたわけだ。 - Robert Louis Stevenson『宝島』
I had in my possession a thing that was, perhaps, the best of all defences against the Morlocks
わたしはモーロックたちに対する防御として、おそらくは最高のものを所有していました - H. G. Wells『タイムマシン』
Although the troops of Otomo Prince waylaid the troops of Oama Prince by removing the planks of the bridge, the troops of Oama Prince broke through the defences and overthrew the Otomo Prince.
大友皇子方が、橋板をはずして大海人皇子方を待ち受けたが、突破されて滅んだ。 - Wikipedia日英京都関連文書対訳コーパス
Leaving various ideas, such as reinforcing the power of the bakufu, and the alliance of major clans, as they were, a council meeting was held on December 1863 by Yoshinobu TOKUGAWA, Shungaku MATSUDAIRA, Katamori MATSUDAIRA, Munenari DATE (the lord of Uwajima clan), and Hisamitsu SHIMAZU to discuss the condition of the port of Kanagawa, the treatment of the Choshu clan, and strengthening the defences of the port of Osaka, but it failed as early as in March 1864, when Shungaku and Hisamitsu became upset with Yoshino TOKUGAWA, a guardian of the shogun, who was not cooperative at all.
いっぽう幕権強化・雄藩連合などの様々な思惑を孕みつつ、文久3年12月に徳川慶喜・松平春嶽・松平容保・伊達宗城(宇和島藩主)・島津久光による参預会議が開催され、神奈川鎖港談判、長州藩の処置、大坂港の防備強化などの議題が話し合われたが、将軍後見職の徳川慶喜の非協力的態度に春嶽・久光らが反撥して帰国したため、早くも翌年3月には崩壊。 - Wikipedia日英京都関連文書対訳コーパス