from 20 to 34 (in exceptional cases up to 50) years. Being a landlocked country, Switzerland has no navy; however, on lakes bordering neighbouring countries, armed boats patrol. Swiss citizens are prohibited from serving in foreign armies, except for the Swiss Guards of the Vatican, or if they are dual citizens of a foreign country and reside there. The Swiss militia system stipulates that soldiers keep their army-issued equipment, including personal weapons, at home. Some organisations and political parties find this practice controversial. Women can serve voluntarily. Men usually receive military conscription orders for training at the age of 18. About two-thirds of young Swiss are found suitable for service; for the others, various forms of alternative service are available. Annually, approximately 20,000 persons are trained in recruit centres for 18 to 21 weeks. The reform "Army XXI" was adopted by popular vote in 2003, replacing "Army 95", reducing the rolls from 400,000 to about 200,000. Of those, 120,000 are active in periodic Army training, and 80,000 are non-training reserves. The newest reform of the military, WEA/DEVA/USEs, started in 2019 and was expected to reduce the number of army personnel to 100,000 by the end of 2022. Overall, three general mobilisations have been declared to ensure the integrity and neutrality of Switzerland. The first one was held in response to the Franco-Prussian War of 1870–71. The second was in response to the First World War outbreak in August 1914. The third mobilisation took place in September 1939 in response to the German attack on Poland. Because of its neutrality policy, the Swiss army does not take part in armed conflicts in other countries, but joins some peacekeeping missions. Since 2000 the armed force department has maintained the Onyx intelligence gathering system to monitor satellite communications. Gun politics in Switzerland are unique in Europe in that 2–3.5 million guns are in the hands of civilians, giving the nation an estimate of 28–41 guns per 100 people. It is worth noting that as per the Small Arms Survey, only 324,484 guns are owned by the military. Only 143,372 are in the hands of soldiers. However, ammunition is no longer issued. Economy and labour law Switzerland has a stable, prosperous and high-tech economy. It is the world's wealthiest country per capita in multiple rankings. The country ranks as one of the least corrupt countries in the world, while its banking sector is rated