On a day of protest 200,000 tractors filled the streets in and around Delhi.

We were driving back to Chicago on Monday from the east coast where we celebrated Thanksgiving with family,

We were somewhere in central Pennsylvania.

On long drives like this, Anne and I make a practice of switching drivers every two hours.

I was in the passenger seat about to doze off when a green billboard caught my eye.

“The largest strike in history is happening now by farmers in India,” it said.

“Wow. Did you see that?” I said.

“I’m keeping my eyes on the road,” Anne responded

The billboard went by so quickly that I don’t know who put it up or anything else about it.

Where did it come from? Who put it there?

I do know that what it said is true.

The farmers’ strike in India may be the largest strike in history and has been going on for over a year.

The largest strike in history and you may not have known about it.

The strike is in response to the attempt by the right-wing government of Prime Minister Narendra Modi to remove price supports to India’s farmers.

Modi is a pal of Donald Trump and was a welcome visitor to the Trump White House.

The move by Modi is seen as a move to support the large corporate take-over of family agriculture in a country where most people depend on farming to survive.

And for millions, just surviving is what it is all about.

That would resonate with many family farmers in Pennsylvania and elsewhere in this country.

More than 60 percent of India’s 1.3 billion people still depend primarily on agriculture for their livelihood.

For years, debts and bankruptcies have been driving farmers to high rates of suicide.

After a year of the strike, on November 19, the Prime Minister said he would formally repeal his legislation in hopes of ending the farmers’ actions.

"I urge all my agitating farmer companions... return to your homes, fields and to your families. Let's make a fresh start," Modi said.

The striking farmers didn’t listened to Modi and they remain on strike.

Leaders say farmers will continue protesting until the government meets several other demands, including raising the minimum price of their produce, withdrawing legal action against some farmers, and paying compensation to the families of hundreds of farmers who have died as a result of the civil action.

Farming households in India only made an average income of 10,218 rupees ($137) per month in 2018-19, according to government statistics -- 316 rupees less than the nation's average salary that year.

But the mystery of the green billboard in Pennsylvania?