Question

document 1
in november 1811, the committee on foreign relations of the u.s. house of representatives reported on our nation’s growing conflict with france and britain. in the following excerpt, the report explains our complaints against britain. (from annals of the congress of the united states, twelfth congress.)
to sum up, in a word, the great causes of complaint against great britain, your committee need only say, that the united states, as a sovereign and independent power, claim the right to use the ocean, which is the common and acknowledged highway of nations, for the purposes of transporting, in their own vessels, the products of their own soil and the acquisi - tions of their own industry.... great britain, in defiance of this incontestable clear and certain right, captures every american vessel bound to, or returning from, a port where her commerce is not favored; enslaves our seamen, and in spite of our complaints and protests, perseveres in these aggressions.
according to this congressional report, what was america’s major complaint against great britain?
document 2

Explanation:

The congressional report states that the US, as a sovereign power, claims the right to use the ocean for transporting its goods. However, Great Britain defied this right by capturing American vessels bound to/from ports where its commerce wasn't favored, enslaving American seamen, and persisting in these aggressions despite complaints. So the major complaint is Britain's violation of US's right to use the ocean for trade (capturing vessels, enslaving seamen, and continuing aggressions).

Answer:

According to the congressional report, America’s major complaint against Great Britain was that Great Britain defied the United States' right (as a sovereign and independent power) to use the ocean for transporting its own products and industry acquisitions in its own vessels; Britain captured American vessels bound to or returning from ports where its commerce was not favored, enslaved American seamen, and persevered in these aggressions despite American complaints and protests.