Washington, July 25 (Xinhua) The US law enforcement and intelligence agencies will conduct a massive anti-terrorism exercise in the country in collaboration with four other nations, officials said Friday.

All security officials in the country will participate in the five-day exercise that will begin Monday.

'It will be the first major exercise by the United States government that will focus exclusively on terrorism prevention and protection,' the Federal Emergency Management Agency (FEMA) said in a statement.

The exercise will simulate an attack on the country in which the participants will test their coordination, intelligence and terror prevention skills.

'Lessons learned from the exercise will provide valuable insights to guide future planning for securing the nation against terrorist attacks, disasters, and other emergencies,' the statement added.