Best Book/Reading on Small unit tactics, particularly squad level?

<h1 id="title" class="a-size-large a-spacing-none" style="box-sizing: border-box; font-family: Arial, sans-serif; text-rendering: optimizelegibility; font-size: 21px; line-height: 1.3; color: rgb(51, 51, 51);"><span id="productTitle" class="a-size-large" style="box-sizing: border-box; line-height: 1.3; text-rendering: optimizelegibility;">The Defense Of Duffer's Drift - A Lesson in the Fundamentals of Small Unit Tactics.</span></h1><div><span class="a-size-large" style="box-sizing: border-box; line-height: 1.3; text-rendering: optimizelegibility;"><br></span></div><div><span class="a-size-large" style="box-sizing: border-box; line-height: 1.3; text-rendering: optimizelegibility;">This was on my reading list as a young Marine Infantryman, I was not to enthused about having mandatory reading at that age, especially out of school finally, but once I got into this book it was awesome. &nbsp;It doesn't really cover today's tactics but will help guide the mind in critical thinking about small unit tactics, and what to look for and what/how to think about the unknown or unseen when conducting small unit operations. &nbsp;I would recommend this book to everyone serving in any branch of the military, its a great read to help shape the way we think other than for ourselves.</span></div>

The Ranger Handbook. Maybe not what you're looking for...

"Leadership and Training for the Fight" by MSG Paul R. Howe (USA Ret).