<a href="https://en.wikipedia.org/wiki/Vietnam_War" id="mwARA" rel="mw:WikiLink" title="Vietnam War">Vietnam War</a>: <a href="https://en.wikipedia.org/wiki/Easter_Offensive" id="mwARE" rel="mw:WikiLink" title="Easter Offensive">Easter Offensive</a>: American forces begin sustained air strikes and naval bombardments.