保卫 bǎowèi
[defend;safeguard;secur;in defence of] 保护国家利益、集体财产、人身安全、领土完整使之不受侵犯
例句：
One that flanks, especially a soldier so positioned as to protect the flank of a column of troops on the march.
侧卫尤指在行军中为掩护或保卫纵队侧翼而设置的士兵fight for safeguarding socialism
保卫社会主义作战To defend or protect.
保护，保卫Every one is duty-bound to defend his motherland.
保卫祖国人人有责。None of us will ever forget this day, yet we go forward to defend freedom and all that is good and just in our world.
我们不仅将永远记住这一天，我们将更加英勇地冲锋陷阵以捍卫自由，保卫这个世界上一切美好和正义的事业。
英文解释
n.: take up arms against, secur, protection, fence ...against, fence ...from, defend from, defend against, in defence of, take up arms against for, take arms against for, bear arms against for, take arms against, bear arms against, in defense, ward, safeguard, defense