Invasion of Hvaler
{'<entity_0>': 'Swedish-Norwegian War', '<entity_1>': 'Invasion of Hvaler', '<entity_2>': 'Norway', '<entity_3>': 'Hvaler'}
[['Invasion of Hvaler', 'location', 'Hvaler'], ['Invasion of Hvaler', 'part of', 'Swedish-Norwegian War'], ['Invasion of Hvaler', 'location', 'Norway']]
The <entity_1> (Swedish: Invasionen av Hvaleröarna) was a Swedish military invasion during the <entity_0>. The invasion was directed at the <entity_2> archipelago of <entity_3> in the southwestern part of Østfold, <entity_2>. The hostilities opened on 26 July with a swift Swedish naval attack against the <entity_2> gunboats at <entity_3>.
['conflict']