What is the meaning of the expressions "from the trench

[hereinchina]

Hello,
What is the meaning of the expressions "from the trenches" and "hit hard at a national sore spot" in paragraph number six below. This is part of a Time magazine article about a book called "Battle Hymn of the Tiger Mother".

Tiger Moms: Is Tough Parenting Really the Answer?
By Annie Murphy Paul

It was the "Little White Donkey" incident that pushed many readers over the edge. That's the name of the piano tune that Amy Chua, Yale law professor and self-described "tiger mother," forced her 7-year-old daughter Lulu to practice for hours on end — "right through dinner into the night," with no breaks for water or even the bathroom, until at last Lulu learned to play the piece.

For other readers, it was Chua calling her older daughter Sophia "garbage" after the girl behaved disrespectfully — the same thing Chua had been called as a child by her strict Chinese father.

And, oh, yes, for some readers it was the card that young Lulu made for her mother's birthday. "I don't want this," Chua announced, adding that she expected to receive a drawing that Lulu had "put some thought and effort into." Throwing the card back at her daughter, she told her, "I deserve better than this. So I reject this."

Even before Battle Hymn of the Tiger Mother, Chua's proudly politically incorrect account of raising her children "the Chinese way," arrived in bookstores Jan. 11, her parenting methods were the incredulous, indignant talk of every playground, supermarket and coffee shop. A prepublication excerpt in the Wall Street Journal (titled "Why Chinese Mothers Are Superior") started the ferocious buzz; the online version has been read more than 1 million times and attracted more than 7,000 comments so far. When Chua appeared Jan. 11 on the Today show, the usually sunny host Meredith Vieira could hardly contain her contempt as she read aloud a sample of viewer comments: "She's a monster"; "The way she raised her kids is outrageous"; "Where is the love, the acceptance?"

Chua, a petite 48-year-old who carries off a short-skirted wardrobe that could easily be worn by her daughters (now 15 and 18), gave as good as she got. "To be perfectly honest, I know that a lot of Asian parents are secretly shocked and horrified by many aspects of Western parenting," including "how much time Westerners allow their kids to waste — hours on Facebook and computer games — and in some ways, how poorly they prepare them for the future," she told Vieira with a toss of her long hair. "It's a tough world out there."

Chua's reports from the trenches of authoritarian parenthood are indeed disconcerting, even shocking, in their candid admission of maternal ruthlessness. Her book is a Mommie Dearest for the age of the memoir, when we tell tales on ourselves instead of our relatives. But there's something else behind the intense reaction to Tiger Mother, which has shot to the top of best-seller lists even as it's been denounced on the airwaves and the Internet. Though Chua was born and raised in the U.S., her invocation of what she describes as traditional "Chinese parenting" has hit hard at a national sore spot: our fears about losing ground to China and other rising powers and about adequately preparing our children to survive in the global economy. Her stories of never accepting a grade lower than an A, of insisting on hours of math and spelling drills and piano and violin practice each day (weekends and vacations included), of not allowing playdates or sleepovers or television or computer games or even school plays, for goodness' sake, have left many readers outraged but also defensive. The tiger mother's cubs are being raised to rule the world, the book clearly implies, while the offspring of "weak-willed," "indulgent" Westerners are growing up ill equipped to compete in a fierce global marketplace.

[ouyang]

These expressions are metaphors. From the trenches is a World War I expression. http://www.firstworldwar.com/features/slang.htm
You could say, 'the linguist abandoned his theories in the trenches of his first teaching position.' It emphasizes real world experience vs. theoretical views. War was not the glorious experience that soldiers had anticipated.





Psychological sore spots can be personal or collective. They trigger negative emotions.
http://idioms.thefreedictionary.com/touch+a+sore+spot

[hereinchina]

Hello,
I appreciate your taking the time to answer my question.
Best wishes