War or some kind of battle
Six countries that gained territory after World War 1 include France, which acquired Alsace-Lorraine from Germany; Italy, which gained territory from Austria-Hungary; Romania, which expanded its borders and gained territory from Austria-Hungary; Greece, which acquired Western Thrace from the Ottoman Empire; Poland, which gained independence and expanded its borders; and Czechoslovakia, which emerged as a new country and gained territory from Austria-Hungary.
after mexico gained independence from spain in 1821, it opened its borders to american traders, whom spain had kept away.
New Mexico is a state and no territory was gained from them.
A territory of the new nation.
britaın
In the Compromise of 1850, the Mexican Cession territory (excluding California) was to become New Mexico and Utah. Their slave situations were to be determined using popular sovereignty, or the power of the votes of the people to decide if it would be a slave state or not. In addition, the Compromise of 1850 also gave the disputed territory between Texas, a slave state, and New Mexico to New Mexico. This invalidated the previous compromise, the Missouri Compromise, which banned slavery in North of 36 in newly gained territory.
True, it gained the Philippines, Guam and Puerto Rico.
New York, Massachusetts, Vermont
As google maps easily tells you, several states do. Maine, New York, Minnesota, and North Dakota. Then Montana borders 3 provinces, and Alaska borders one province and one territory.
South Australia borders all of the mainland states - Western Australia, New South Wales, Queensland and Victoria - along with the Northern Territory.
To get new or more land for their country. In other words to expand their territory.
the land west of the original 13 colonies.