"massive violence" is correct and usable in written English.
You can use it to refer to a large amount of violence or brutality occurring in a particular place or situation. For example, "The city was rocked by massive violence during the civil war."
Neither country would allow the Sri Lankans to disembark even though they came from a country experiencing massive violence and displacement.
Kenyatta, Ruto and Joshua arap Sang, a Kenyan radio presenter, all face charges of crimes against humanity before the ICC for inciting massive violence following the 2007 election.
We have seen this play before, not simply in Iran but in other tyrannies that suppressed mass movements for democratic change with massive violence and terror.
One of the greatest admirers of Gandhi was Albert Einstein, who saw in Gandhi's nonviolence a possible antidote to the massive violence unleashed by the fission of the atom.
"But what we do know is that the problem will become massive, violence will increase, attitudes will change if there are thousands more and the government doesn't find a way to return them or move them on".
In the Islamic world today, people are trying to rejoin themselves to an antiquated and ancient faith and the result is massive violence when they encounter people who have not done that.
While red-purge in America and other western countries in the heyday of the Cold War lasted only for several years in the 1950s and the political repression on the communists didn't develop into massive political violence, anticommunism in South Korea legitimized state violence and developed into civil war around 1948, which lead to maddening mass killings even before the full scale war.
They are the three Arab countries that have experienced massive sectarian violence and the horrors of civil war themselves.
Mahmoud Ahmadinejad, Iran's irascible, unpredictable but devout president, may be forced to resign in the coming weeks as a political crisis far greater than the massive street violence which followed his re-election in 2009 threatens to overwhelm him and his court favourites in the government.
Massive political violence and massacres unleashed before and during the Korean War were expressions of anticommunism.
It was officially inaugurated in 1948 when the divided governments were established in North and South of the Korean peninsula, which led to massive political violence before and during the Korean War (1950 1953).
