Adept at moderating the sometimes harsh political conflict between Federalists and Democratic-Republicans and popular in Massachusetts, he navigated the state in a Federalist direction through the early years of the 19th century as the rest of the country became progressively more Republican. Although he sought to retire from politics after losing the 1807 governor's race, the advent of the War of 1812 brought him back to the governor's office as a committed opponent of the war. He refused United States Army requests that state militia be placed under army command, and in 1814 sought to engage Nova Scotia Governor John Coape Sherbrooke in peace talks. The state and federal government's weak defense of Massachusetts' northern frontier during Strong's tenure contributed to the successful drive for Maine's statehood, which was granted in 1820.