In 57% of cases "annex to" is used
In 1668, Triplicane was annexed to the Madras City.
The Frontier District is a part of Somalia which was annexed to Kenya.
It went on a Egypt which was also conquered and annexed to the Persian Empire in 616.
Begining with the Austrian Anschluss in 1937, substantial territory was annexed to the Reich.
Presently, there is no area or territory that has been annexed to any contemporary Islamic state as a result of defeat of the non-Muslim population in a war.
Certificate to be given by all Companies A certificate in the form set out hereunder shall be given by a director and a secretary of every company and annexed to this form.
In 33% of cases "annex by" is used
It was annexed by Pakistan against the wishes of Baluchis.
They were later annexed by a neighboring non-Muslim power.
The area was formerly part of the town of Lake until it was annexed by Chicago in 1889.
All of Germany's overseas colonies were annexed by the Allies, either to become colonies or areas that were managed until independence could be maintained autonomously.
With the rest of Alsace, Colmar was annexed by the newly formed German Empire in 1871 as a result of the Franco-Prussian War and incorporated into the Alsace-Lorraine province.
In 2% of cases "annex into" is used
The kingdom is annexed into the Gold Coast Colony, region to the north becomes a British protectorate.