Friction
The United States
Mainly friction.
Oppose & Prevent
There are numerous such organizations. The three most famous are the Palestine Liberation Organization, Hezbollah, and Hamas.
The National Organization for Marriage, the Roman Catholic Church and the Republican Party all oppose same-sex marriage.
Gravity and drag are two forces that oppose flight. Gravity pulls the aircraft downward, while drag slows the aircraft's forward movement. Both forces must be overcome for an object to achieve and maintain flight.
Britain
Many groups of Christians oppose fighting in the armed forces, including Seventh Day Adventists and Quakers. There are also some groups of Buddhists and Jains that oppose joining any military.
they believed the colonies were not worth american time and money
The two forces that oppose motion are friction and air resistance. Friction is the force that acts opposite to the direction of motion when two surfaces are in contact, while air resistance is the force that opposes an object's motion through the air.
The Việt Minh initially formed to seek independence for Vietnam from France and later to oppose the Japanese occupation.