It is sabotage. It means to damage or destroy as an act of subversion against an organization or nation.

VOA: special.2010.04.18

Didn't want to go to school." Bullying is defined as negative behavior repeated over time against the same person.

VOA: special.2010.04.22

It seemed as if a heavy body was thrown against the table with a force that pushed against his chest.

VOA: special.2009.10.31

As a congressman and a senator, he had voted against every attempt to give more power to the federal government.

VOA: special.2009.01.29

A passenger in a car threw a grenade that exploded as a crowd demonstrated against the Yemeni government.

VOA: special.2011.02.19

In nineteen ninety-nine, Walter Plowright won the World Food Prize as a hero of the fight against rinderpest.

VOA: special.2010.11.02

The study did find improvements in sub-Saharan Africa in the last five years,however, possibly as a result of expanded efforts against AIDS.

VOA: special.2010.05.05

President Obama threw out the first pitch as the Washington Nationals opened their season against the Philadelphia Phillies.

VOA: special.2010.04.10

This does not include his time as a soldier in the Civil War or fighting against Indians.

VOA: special.2010.03.17

Critics say that as a result these schools are discriminating against women and admitting less qualified men.

VOA: special.2009.11.19

As a result, the study in China found that the cotton plants could also help protect nearby crops against damage by the insects.

VOA: special.2010.05.25

I must go with him and protect the nation against him as far as I could.

VOA: special.2010.03.27

Therefore,to send troops to a state where federal officers had resigned such as South Carolina would be an act of war against the state.

VOA: special.2009.07.16

They were so thin C it seemed as if they would break against the waves.

VOA: special.2010.03.06