In the 1980s, the plan to recognize national security concerns and accepting Pakistan' assurances that it did not intend to construct a nuclear weapon, Congress waived restrictions (Symington Amendment) on military assistance to Pakistan. In October 1980, a high-level delegation and CMLA General Zia-ul-Haq travels to U.S., first meeting with former president Richard Nixon. Although, the meeting was to discuss the Soviet invasion of Afghanistan, Nixon made it clear he is in favor of Pakistan gaining nuclear weapons capability, while correcting that he is not in a race for the presidential elections. The following year, Agha Shahi made it clear to Alexander Haig that Pakistan "won't make a compromise" on its nuclear weapons program, but assured the U.S. that the country had adopted the policy of deliberate ambiguity, refraining itself to conduct nuclear tests to avoid or create divergence in the relations.