LONDON, April 14--Henry A. Wallace replied defiantly tonight to Congressional criticism of his speeches here against President Truman's foreign policy with the assertion that "only if a state of war existed could I be accused of giving aid to an enemy in expressing my point of view."

He said that it was his intention to "go on speaking for peace wherever men will listen to me until the end of my days."

The former Vice President's reply was given in a statement distributed from his hotel room, where he was resting after an 800-mile speaking tour through Britain's West Midlands.

He appeared tired. The laughs with which he greeted first news of the strong criticism of his speeches from both Democratic and Republican Congressmen were absent as he gave his prepared reply to news correspondents.

(In Washington the White House turned aside questions as to what course President Truman might follow.)