When it has clashed with government forces, its aim has been to capture weapons rather than territory.
It has Clash-like guitars, and the lyrics are very funny.
But it has clashed more and more with the other branches of government.
The Cochrane Collaboration has reviewed the evidence on Tamiflu in the past, and it has clashed with Roche before over access to data.
It has clashed with Malaysia and the Philippines over claims to rocky outposts in the South China Sea, which the three countries border.
It has its own Java-based tools for software developers, called Eclipse, and at times it has clashed with Sun, potentially weakening the Java camp as an alternative to Microsoft's Windows software and tools.
On Tuesday, rather than react in a news release to the decision by the medical journal to deny its request to retract an article, St . Judeapparently shifted to Plan B. It announced that it had posted data on the Internet intended to show that the researcher with whom it has clashed, Dr. Robert Hauser of Minneapolis, had made critical mistakes.
The Ukrainian military says it has clashed with rebel armoured vehicles that crossed from Russia and headed to the south-eastern port of Mariupol.
It was set up in 2012 as a temporary vehicle for integrating former rebel fighters into a cohesive national force, but it has clashed with other government-sponsored forces, such as the special forces unit of the Libyan army.
It has clashed with IS elsewhere in Syria but often cooperates in the south, and Palestinians accuse it of allowing IS into the camp.
It had clashed repeatedly with Chinese officials over censorship demands, the executive said.
