The tactics and strategies which Rome has employed over the centuries are:
#5. Insurgence - To counter the Protestant Reformation Rome turned to the use of political and military force. Where natives in new lands in South America or people in European nations needed "convincing" to become Catholic or to return to Catholicism, Catholic rulers such as Phillip II of Spain and later the Holy Roman Emperor, Ferdinand II, used political and even military coercion, either to enforce Catholicism on all in a given area or to force those who wanted to remain Protestant to leave altogether.
Across Europe from 1560-1715 there was the Age of Religious Wars. It is reckoned that between 1560 and 1715, Europe witnessed only thirty years of any semblance of peace. Romanism was being threatened on every hand, not only by the doctrines of Lutheranism but also by those of Calvinism. Biblical truth was spreading even into Catholic nations and Rome was not happy. Her answer was to wage war to the death upon Protestants, in Germany, Bohemia, France, Netherlands, England and Scotland.
However, Protestantism recognised no political boundaries and spread into the Catholic states. By the start of the 1600s the Holy Roman Empire was divided along two hostile lines. There were the Protestant states/nations and the Catholic league of nations. This was a receipt for war.
The Thirty Years' War actually began in Bohemia, which is part of the Czech Republic, or Czechia, as it is now known. When Ferdinand II became the king of Bohemia in 1617, the Bohemian Protestants feared he would turn Bohemia back to Catholicism as Ferdinand was viewed as a zealous Catholic.
A time of persecution of Protestants followed, ending with the battle of the White Mountain in November 1620. Protestantism in the Czech lands had suffered a serious blow. With Protestantism seemingly defeated Ferdinand used the Jesuits to turn Bohemia back to Catholicism.
While the battle between Protestantism and Romanism was lost in the Czech lands it continued through the north states and nations of Europe. The German states and Denmark became more involved.
Peace negotiations continued between 1644 and 1648. Eventually, the Treaty of Westphalia, was signed in October 1648. As a result the Holy Roman Empire became divided into more than three hundred sovereign states. In these states Lutheranism, Calvinism and Catholicism were recognised.
This was a trap to ensnare Protestants. Before the festivities were over there occurred one of the most hideous crimes recorded in history. The date was 24th August 1572. On the evening of the wedding celebrations the king’s mother, Catherine de Medici, an ardent Catholic, went to her son and told him of a supposed plot to assassinate the royal family and the Catholic leaders on the part of the Huguenots. She urged the slaughter of all the Protestant wedding guests. Over the next days, and months, thousands were put to death on the streets of Paris and beyond including the provinces of Rouen, Lyon, Bourges, Orleans, and Bordeaux.
The Edict of Nantes in 1598 give some relief to Protestants but it was short lived. Persecution continued. The final blow came in 1685 when The Edict of Nantes was revoked. Protestant worship was suppressed and churches were demolished.