1. The problem asks which two issues most strongly pushed the United States toward declaring war on Great Britain in 1812. 2. The key historical causes of the War of 1812 include British impressment of American sailors and British trade restrictions on American shipping. 3. British impressment involved forcibly recruiting American sailors into the British navy, violating U.S. sovereignty. 4. British trade restrictions, such as the Orders in Council, limited American trade with France and other countries, harming the U.S. economy. 5. Other options like a border dispute with Mexico and disputes over the Oregon Territory were not primary causes of the 1812 war. 6. Therefore, the two strongest issues are: - British impressment of American sailors - British trade restrictions on American shipping This explains the main causes leading to the U.S. declaration of war in 1812.