Passage: The intervention of Denmark, Sweden and Poland-Lithuania into Livonia began a period of struggle for control of the Baltic, known contemporaneously as the dominium maris baltici. While the initial war years were characterised by intensive fighting, a period of low-intensity warfare began in 1562 and lasted until 1570 when fighting once more intensified. Denmark, Sweden and to some extent Poland-Lithuania were occupied with the Nordic Seven Years' War  taking place in the Western Baltic, but Livonia remained strategically important. In 1562, Denmark and Russia concluded the Treaty of Mozhaysk, respecting each other's claims in Livonia and maintaining amicable relations. In 1564, Sweden and Russia concluded a seven-years truce. Both Ivan IV and Eric XIV showed signs of mental disorder, with Ivan IV turning against part of the Tsardom's nobility and people with the oprichina that began in 1565, leaving Russia in a state of political chaos and civil war.
Denmark and Russia both claimed part of what region? How many contries intervened into Livonia? How many countries struggle for control of the Baltic? How many countries were part of  the Treaty of Mozhaysk? How many leaders were mentally ill? How many years did low level warfare last? How many years did low-intensity warfare last? How many years did the low-intensity warfare last? How many years did the period of low-intensity warfare last? How many years did these events span for? Russia ended the truce with who? What event happened first, Sweden and Russian concluding a seven-years truce, or the start of the period of low intensity warfare? What happened when the Tsar's nobility was turned against? Which event happened first, the conclusion of the Treaty of Mozhaysk, or Ivan IV turning against part of Tsardom's nobility? Which happened first, the Treaty of Mozhaysk or the conclusion of the truce between Sweden and Russia? Which happened first, the Treaty of Mozhaysk or the oprichina? Which happened first, the Treaty of Mozhaysk or the seven-years truce? Why did Denmark, Sweden and Poland-Lithuania intervene?