Study Nixon's War, including Vietnamisation, chemical warfare, bombing from 1970 to 1972, relations with China and widening the war into Laos and Cambodia.

Context check: Part three: The ending of conflict in Vietnam in BD Conflict and tension in Asia, 1950-1975 (Paper 1 Section B: Wider world depth studies) provides the direct anchor for this learning objective. Students focus on Study Nixon's War, including Vietnamisation, chemical warfare, bombing from 1970 to 1972, relations with China and widening the war into Laos and Cambodia. The explanation should use the subtopic wording, the relevant period, named events or individuals where appropriate, and precise historical evidence. It should then separate cause from consequence, change from continuity, and significance from importance while keeping sources, interpretations, evidence and opinion distinct.