Though it varies by country, generally peacetime law in the 20th and 21st centuries has not allowed merchant vessels to carry weapons. As a response to the rise in modern piracy, however, the U.S. government changed its rules so that it is now possible for U.S.-flagged vessels to embark a team of armed private security guards. The US Coastguard leaves it to ship owners' discretion to determine if those guards will be armed. The International Chamber of Shipping (ICS) in 2011 changed its stance on private armed guards, accepting that operators must be able to defend their ships against pirate attacks. This has given birth to a new breed of private security companies that provide training for crew members and operate floating armouries for protection of crew and cargo; this has proved effective in countering pirate attacks. The use of floating armouries in international waters allows ships to carry weapons in international waters, without being in possession of arms within coastal waters where they would be illegal. Seychelles has become a central location for international anti-piracy operations, hosting the Anti-Piracy Operation Center for the Indian Ocean. In 2008, VSOS became the first authorized armed maritime security company to operate in the Indian Ocean region.